Electrical Engineering: Principles & Applications (7th Edition)
Verified Answer ✓
Verified Answer ✓
The direction of the magnetic field B will be into... more
Verified Answer ✓
in negative z-direction. ; The magnitude of the ... more
Verified Answer ✓
; The expression to calculate the force acting on... more
Verified Answer ✓
Verified Answer ✓
; Magnetic flux density of current carrying long ... more
Verified Answer ✓
For Path 1 For Path 2 For Path 3 ; According to ... more
Verified Answer ✓
It is a repulsive force . ; The force between ... more
Verified Answer ✓
; Given that : Length of core: Length of air gap... more
Verified Answer ✓
; Given that, Core stacking fator =0.9, Cross ... more
Verified Answer ✓
; To calculate mutual inductance we need to ... more
Verified Answer ✓
both flux will oppose each other.dot should be at ... more
Verified Answer ✓
Verified Answer ✓
; It is given that Area of Hysteresis loop is , ... more
Verified Answer ✓
; It is given that :cross section Area of core ... more
Verified Answer ✓
and ; is the impedance seen by the source, ... more
Verified Answer ✓
, , and ; Value of resistance , that is ... more
Verified Answer ✓
; According to the maximum power transfer theorem... more
Verified Answer ✓
When electrons are in constant motion, that moving... more
Verified Answer ✓
Faraday's law: When the fiux linkages with ... more
Verified Answer ✓
Ampere's law states that line integral of magnetic... more
Verified Answer ✓
Verified Answer ✓
The voltage is negative as bar magnet approaches ... more
Verified Answer ✓
At from the straight wire the required magnetic ... more
Verified Answer ✓
No, there is no net force acting on the loop.Due ... more
Verified Answer ✓
; Force, generated on the wire is given as... more
Verified Answer ✓
Magnetic field will be zero inside the pipe but ... more
Verified Answer ✓
The relative permeability of the material is 1592.... more
Verified Answer ✓
At force is attractive there is no force... more
Verified Answer ✓
Flux,Flux linkage, ; Flux density Number of turns... more
Verified Answer ✓
Using the right hand rule, we can determine the ... more
Verified Answer ✓
; Lenz law states that, The induced emf with ... more
Verified Answer ✓
The units of B isThe units of H isThe units of is... more
Verified Answer ✓
; Using the right-hand rule, we find that the ... more
Verified Answer ✓
Verified Answer ✓
; The sinusoidal voltage e is given as with : ; ... more
Verified Answer ✓
Maximum value of flux linkage turnsMaximum value ... more
Verified Answer ✓
; Flux is given by: ; However induced voltage e ... more
Verified Answer ✓
; Voltage induced across the terminals of the ... more
Verified Answer ✓
Verified Answer ✓
Verified Answer ✓
; Given and , , the reluctance can be ... more
Verified Answer ✓
; Given , and we know that and With these ... more
Verified Answer ✓
The length is directly proportional to the ... more
Verified Answer ✓
One of the advantage of the magnetic circuit is, ... more
Verified Answer ✓
kilogram per second webinarcoulombs per second ... more
Verified Answer ✓
; From the given values the magnetic flux can be ... more
Verified Answer ✓
; The reluctance of the core can be calculated ... more
Verified Answer ✓
; We know that , since R is negligible then flux ... more
Verified Answer ✓
; By including the effect of fringing(i.e.,) ... more
Verified Answer ✓
; From the given values the reluctance of the ... more
Verified Answer ✓
; There are two coils is given. Since there are ... more
Verified Answer ✓
; Two coils are wounded around the core which has... more
Verified Answer ✓
; Given , , , When then the current since the ... more
Verified Answer ✓
; Given , , , From the frequency the wavelength ... more
Verified Answer ✓
; Given , , from this the value can be ... more
Verified Answer ✓
Voltage and current changes with change in ... more
Verified Answer ✓
; Mutual inductance between the two coil is ; ... more
Verified Answer ✓
; Voltage across the coils can be determine by ... more
Verified Answer ✓
; It is given reluctance Number of turns ... more
Verified Answer ✓
in case 1in case 2 ; if both current enters the ... more
Verified Answer ✓
Dot should be placed on bottom terminal of right... more
Verified Answer ✓
; It is given that the material of both side coil... more
Verified Answer ✓
; Given that initially wire is wounded on ... more
Verified Answer ✓
; Given that turns ; ; Assume a sinusoidal... more
Verified Answer ✓
The two causes for core loss are Core losseddie ... more
Verified Answer ✓
; Hysteresis loss, in transformer is ... more
Verified Answer ✓
The B-H curve of a magnetic material is drawn ... more
Verified Answer ✓
Less area of B-H curve are desirable for material... more
Verified Answer ✓
; The B-H curve area is used to obtain energy ... more
Verified Answer ✓
Verified Answer ✓
; Given values are as follows:At Core loss, Power... more
Verified Answer ✓
, ; Given values are as follows:The relation ... more
Verified Answer ✓
Resistance of the coils is zero.Core loss is zero... more
Verified Answer ✓
Verified Answer ✓
The better approach will be using a transformer as... more
Verified Answer ✓
As power loss is directly proportional to ... more
Verified Answer ✓
Verified Answer ✓
; Given that: Load resistance, Load resistance ... more
Verified Answer ✓
; We can calculate secondary voltage and currents... more
Verified Answer ✓
Verified Answer ✓
Verified Answer ✓
Verified Answer ✓
; Given that: and , from these given values: ; ... more
Verified Answer ✓
Verified Answer ✓
; The resistances and account for the ... more
Verified Answer ✓
The Percent regulation %Efficiency % ; To find ... more
Verified Answer ✓
Both and the resistor are responsible for the ... more
Verified Answer ✓
; From the given values can be determined.To find... more
Verified Answer ✓
; From the given values can be determined.To find... more
Verified Answer ✓
The assumptions of an ideal transformer do not ... more
Verified Answer ✓
; the source voltage is given by substituting ... more
Verified Answer ✓
; To find the Power efficiency,Start with ... more
Verified Answer ✓
The transformer is designed for a single frequency... more
Verified Answer ✓
Verified Answer ✓
; Given that . The value of can be calculated ... more
Verified Answer ✓
; To find the voltage induced , the relation can... more
Verified Answer ✓
Verified Answer ✓
Mechanisms : Core Loss / hysteresis loss Eddy ... more
Verified Answer ✓
Verified Answer ✓
Transformer B , because it consist of most of the ... more