Conceptual Physical Science (6th Edition)

Chapter 10

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The basic process by which a magnet attracts ... more

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The induced voltage is proportional to the number ... more

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The refrigerator magnets have very short range as ... more

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In case of electric charges there is repulsion ... more

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Magnetic poles are not separable like electric ... more

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The constant motion of the electrons or protons (... more

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Electric charges can be isolated but magnetic ... more

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The cluster of tiny magnets when aligned together ... more

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Iron has large magnetic domains, whereas wood does... more

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when current flow in a wire, magnetic field shape ... more

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The direction of the magnetic fields gets reversed... more

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The direction of the magnetic field also reverses... more

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Inside a loop, the magnetic field gets bunched ... more

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The force experienced is minimum (zero) for ... more

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Decreases ; Magnetic force is always perpendicular... more

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Perpendicular direction ; The magnetic force is ... more

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The direction of the magnetic force also gets ... more

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An ammeter measures the current, and a voltmeter ... more

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Yes. ; The electric motor works on the same ... more

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The phenomenon of electromagnetic induction. ; ... more

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Faraday's law states the emf produced in a coil by... more

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Both devices involve spinning coils of wire within... more

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The induced voltage frequency is the same as the ... more

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An electric motor converts electrical energy to ... more

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The current produced is ac. ; Since the magnetic ... more

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Steam or falling water commonly supply energy to ... more

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No, a generator converts mechanical energy to ... more

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No, in an ideal transformer power remain the same ... more

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Voltage and Current. ; A transformer is a device ... more

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Electric field ; An electric field can be produced... more

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Magnetic field ; A magnetic field can be produced ... more

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Electric and magnetic fields are self sustained. ... more

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The oscillating charge creates a time varying ... more

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The iron atoms are the tiny magnets, and there are... more

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The magnetic domains in the iron materials are ... more

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The bar falls with reduced speed when it falls ... more

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 Substitute  ns=100, np=10, and  vp= 120 V to ... more

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The primary voltage is related to the secondary ... more

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 Substitute  vs=  6 V,  np=500 and  vp= 120 V to ... more

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The primary voltage is related to the secondary ... more

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Substitute  vs=  24 V and vp= 120  V to calculate ... more

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Hence, the current in the secondary coil is ... more

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; The primary voltage, Vp, of a transformer is ... more

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100 ; The primary voltage is related to the ... more

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The voltage induced across the coil is given by ... more

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By moving a very strong magnet over the it. ; Iron... more

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External field induces opposite polarity at the ... more

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The refrigerator magnets are in the form of a ... more

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Yes. ; The magnetic field lines extend from the ... more

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The electric fields surround a stationary electric... more

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Zero.The red mark on the compass needle is ... more

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The magnetic fields produced by the moving ... more

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Yes.The magnetic fields passing through the paper ... more

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A magnet is attracted towards the magnetic ... more

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50 N ; From newton's third law ,which states that ... more

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Yes, paper clip exert force on magnet and this ... more

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The act of hammering shakes the magnetic domains. ... more

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Once the magnetic domains of the nail are aligned... more

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The brass plaque is a non-magnetic substance, so ... more

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The shape of the earth's magnetic field is like a ... more

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No, in M.F, the electron can not move.Yes, in E.F... more

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Along the magnetic field. ; According to right ... more

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The particles have an opposite charge. ; When a ... more

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YesAccording to the Newton's third law, to every ... more

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In northern Canada, magnetic fields are pointing ... more

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The Van Allen radiation belts consist of an ... more

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There will be a high intensity of cosmic-ray. ; ... more

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The metallic objects containing iron, nickel, and ... more

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The vehicles can be suspended in the air by a ... more

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During the plucking process of string, there is a ... more

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Deflection is on the opposite of the previous ... more

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When crossing through the metal detector with ... more

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YesYesThe current pulse can be used to store ... more

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Galvanometer deflects due to the non-zero current.... more

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When the current flows through the coil with iron ... more

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A generator armature is harder to rotate when it ... more

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Yes ; With the headlamp disconnected, the ... more

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In a g, the armature is rotated by a fuel engine ... more

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Agree ; The armature shaft has a coil, which ... more

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The form of energy is transformed by the generator... more

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There should be something to rotate the motor at ... more

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Energy can neither be created nor destroyed. It ... more

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A transformer has a primary coil and a secondary ... more

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The number of turns in the secondary coil is more ... more

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As far as the voltage and current amplification is... more

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NoIt doesn't follow the law of conservation energy... more

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Yes.The electromagnetic waves have varying ... more

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No, the electromagnetic waves don't exist. ; ... more

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When a magnet falls through the pipe, the current ... more

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As the gravity pulls the magnet downwards through ... more

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A motor also tends to act as generators because ... more

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With silk covering, the multiple turns of wires ... more

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No. ; A magnetic compass has both the north and ... more

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Yes.The magnetic force acts on a charged particle ... more

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No.The different ions are deflected by the ... more

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The electric field increases the speed and it can ... more

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The magnetic field causes the charged particles to... more

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No work is done in deflecting the charged particle... more

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The swinging copper sheet crosses through the ... more

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When a magnetized tape is moved past the coil, the... more

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A varying magnetic field across the loop of the ... more

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The light bulb should be connected to a coil loop... more

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The iron slabs in a temporary electromagnet. When ... more

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The voltage induced in the secondary coil is due ... more

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As the switch is turned on, there is an abrupt ... more

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Yes ; The magnetic field produced by one wire ... more

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Iron bits by itself does not produce magnetism but... more

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Since the charge is moving, it will also have the ... more

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The current is the flow of charges. So, when the ... more

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The charged particles moving perpendicular to the ... more

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Since the induced voltage is proportional to the ... more

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Electric and magnetic fields are two different ... more

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Coulomb's law gives the measure of force on a ... more

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Coulomb's law gives the measure of force on a ... more

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A step-up transformer has more number turns in the... more

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Electricity and magnetism together can produce a ... more

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