Conceptual Physical Science (6th Edition)
Verified Answer ✓
The basic process by which a magnet attracts ... more
Verified Answer ✓
The induced voltage is proportional to the number ... more
Verified Answer ✓
The refrigerator magnets have very short range as ... more
Verified Answer ✓
In case of electric charges there is repulsion ... more
Verified Answer ✓
Magnetic poles are not separable like electric ... more
Verified Answer ✓
The constant motion of the electrons or protons (... more
Verified Answer ✓
Electric charges can be isolated but magnetic ... more
Verified Answer ✓
The cluster of tiny magnets when aligned together ... more
Verified Answer ✓
Iron has large magnetic domains, whereas wood does... more
Verified Answer ✓
when current flow in a wire, magnetic field shape ... more
Verified Answer ✓
The direction of the magnetic fields gets reversed... more
Verified Answer ✓
The direction of the magnetic field also reverses... more
Verified Answer ✓
Inside a loop, the magnetic field gets bunched ... more
Verified Answer ✓
The force experienced is minimum (zero) for ... more
Verified Answer ✓
Decreases ; Magnetic force is always perpendicular... more
Verified Answer ✓
Perpendicular direction ; The magnetic force is ... more
Verified Answer ✓
The direction of the magnetic force also gets ... more
Verified Answer ✓
An ammeter measures the current, and a voltmeter ... more
Verified Answer ✓
Yes. ; The electric motor works on the same ... more
Verified Answer ✓
The phenomenon of electromagnetic induction. ; ... more
Verified Answer ✓
Faraday's law states the emf produced in a coil by... more
Verified Answer ✓
Both devices involve spinning coils of wire within... more
Verified Answer ✓
The induced voltage frequency is the same as the ... more
Verified Answer ✓
An electric motor converts electrical energy to ... more
Verified Answer ✓
The current produced is ac. ; Since the magnetic ... more
Verified Answer ✓
Steam or falling water commonly supply energy to ... more
Verified Answer ✓
No, a generator converts mechanical energy to ... more
Verified Answer ✓
No, in an ideal transformer power remain the same ... more
Verified Answer ✓
Voltage and Current. ; A transformer is a device ... more
Verified Answer ✓
Electric field ; An electric field can be produced... more
Verified Answer ✓
Magnetic field ; A magnetic field can be produced ... more
Verified Answer ✓
Electric and magnetic fields are self sustained. ... more
Verified Answer ✓
The oscillating charge creates a time varying ... more
Verified Answer ✓
The iron atoms are the tiny magnets, and there are... more
Verified Answer ✓
The magnetic domains in the iron materials are ... more
Verified Answer ✓
The bar falls with reduced speed when it falls ... more
Verified Answer ✓
Substitute ns=100, np=10, and vp= 120 V to ... more
Verified Answer ✓
The primary voltage is related to the secondary ... more
Verified Answer ✓
Substitute vs= 6 V, np=500 and vp= 120 V to ... more
Verified Answer ✓
The primary voltage is related to the secondary ... more
Verified Answer ✓
Substitute vs= 24 V and vp= 120 V to calculate ... more
Verified Answer ✓
Hence, the current in the secondary coil is ... more
Verified Answer ✓
; The primary voltage, Vp, of a transformer is ... more
Verified Answer ✓
Verified Answer ✓
100 ; The primary voltage is related to the ... more
Verified Answer ✓
Verified Answer ✓
The voltage induced across the coil is given by ... more
Verified Answer ✓
Verified Answer ✓
By moving a very strong magnet over the it. ; Iron... more
Verified Answer ✓
External field induces opposite polarity at the ... more
Verified Answer ✓
The refrigerator magnets are in the form of a ... more
Verified Answer ✓
Yes. ; The magnetic field lines extend from the ... more
Verified Answer ✓
The electric fields surround a stationary electric... more
Verified Answer ✓
Zero.The red mark on the compass needle is ... more
Verified Answer ✓
The magnetic fields produced by the moving ... more
Verified Answer ✓
Yes.The magnetic fields passing through the paper ... more
Verified Answer ✓
A magnet is attracted towards the magnetic ... more
Verified Answer ✓
50 N ; From newton's third law ,which states that ... more
Verified Answer ✓
Yes, paper clip exert force on magnet and this ... more
Verified Answer ✓
The act of hammering shakes the magnetic domains. ... more
Verified Answer ✓
Once the magnetic domains of the nail are aligned... more
Verified Answer ✓
The brass plaque is a non-magnetic substance, so ... more
Verified Answer ✓
The shape of the earth's magnetic field is like a ... more
Verified Answer ✓
No, in M.F, the electron can not move.Yes, in E.F... more
Verified Answer ✓
Along the magnetic field. ; According to right ... more
Verified Answer ✓
The particles have an opposite charge. ; When a ... more
Verified Answer ✓
YesAccording to the Newton's third law, to every ... more
Verified Answer ✓
In northern Canada, magnetic fields are pointing ... more
Verified Answer ✓
The Van Allen radiation belts consist of an ... more
Verified Answer ✓
There will be a high intensity of cosmic-ray. ; ... more
Verified Answer ✓
The metallic objects containing iron, nickel, and ... more
Verified Answer ✓
The vehicles can be suspended in the air by a ... more
Verified Answer ✓
During the plucking process of string, there is a ... more
Verified Answer ✓
Deflection is on the opposite of the previous ... more
Verified Answer ✓
When crossing through the metal detector with ... more
Verified Answer ✓
YesYesThe current pulse can be used to store ... more
Verified Answer ✓
Galvanometer deflects due to the non-zero current.... more
Verified Answer ✓
When the current flows through the coil with iron ... more
Verified Answer ✓
A generator armature is harder to rotate when it ... more
Verified Answer ✓
Yes ; With the headlamp disconnected, the ... more
Verified Answer ✓
In a g, the armature is rotated by a fuel engine ... more
Verified Answer ✓
Agree ; The armature shaft has a coil, which ... more
Verified Answer ✓
The form of energy is transformed by the generator... more
Verified Answer ✓
There should be something to rotate the motor at ... more
Verified Answer ✓
Energy can neither be created nor destroyed. It ... more
Verified Answer ✓
A transformer has a primary coil and a secondary ... more
Verified Answer ✓
The number of turns in the secondary coil is more ... more
Verified Answer ✓
As far as the voltage and current amplification is... more
Verified Answer ✓
NoIt doesn't follow the law of conservation energy... more
Verified Answer ✓
Yes.The electromagnetic waves have varying ... more
Verified Answer ✓
No, the electromagnetic waves don't exist. ; ... more
Verified Answer ✓
When a magnet falls through the pipe, the current ... more
Verified Answer ✓
As the gravity pulls the magnet downwards through ... more
Verified Answer ✓
A motor also tends to act as generators because ... more
Verified Answer ✓
With silk covering, the multiple turns of wires ... more
Verified Answer ✓
No. ; A magnetic compass has both the north and ... more
Verified Answer ✓
Yes.The magnetic force acts on a charged particle ... more
Verified Answer ✓
No.The different ions are deflected by the ... more
Verified Answer ✓
The electric field increases the speed and it can ... more
Verified Answer ✓
The magnetic field causes the charged particles to... more
Verified Answer ✓
No work is done in deflecting the charged particle... more
Verified Answer ✓
The swinging copper sheet crosses through the ... more
Verified Answer ✓
When a magnetized tape is moved past the coil, the... more
Verified Answer ✓
A varying magnetic field across the loop of the ... more
Verified Answer ✓
The light bulb should be connected to a coil loop... more
Verified Answer ✓
The iron slabs in a temporary electromagnet. When ... more
Verified Answer ✓
The voltage induced in the secondary coil is due ... more
Verified Answer ✓
As the switch is turned on, there is an abrupt ... more
Verified Answer ✓
Yes ; The magnetic field produced by one wire ... more
Verified Answer ✓
Iron bits by itself does not produce magnetism but... more
Verified Answer ✓
Since the charge is moving, it will also have the ... more
Verified Answer ✓
The current is the flow of charges. So, when the ... more
Verified Answer ✓
The charged particles moving perpendicular to the ... more
Verified Answer ✓
Since the induced voltage is proportional to the ... more
Verified Answer ✓
Electric and magnetic fields are two different ... more
Verified Answer ✓
Coulomb's law gives the measure of force on a ... more
Verified Answer ✓
Coulomb's law gives the measure of force on a ... more
Verified Answer ✓
A step-up transformer has more number turns in the... more
Verified Answer ✓
Electricity and magnetism together can produce a ... more