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Electromagnetic Field Theory
The operation of electric generators and motors depend on the intraction between magnetic field and
Commutator.
Copper conductors.
Electric fields.
Electric current.
Commutator.
Copper conductors.
Electric fields.
Electric current.
Answer
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Related Question
Electromagnetic Field Theory
The energy stored in the magnetic field in a solenoid 10 cm long and 4 cm diameter wound with 2000 turns of wire carrying a current at 20 amp, is
15 joules.
12 joules.
24 joules.
30 joules.
15 joules.
12 joules.
24 joules.
30 joules.
Answer
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Electromagnetic Field Theory
A point charge in space is attracted towards a dielectric material because of the
maximisation of electrostatic flux.
all of above.
phenomenon of dielectric polarisation.
dielectric hysteresis.
maximisation of electrostatic flux.
all of above.
phenomenon of dielectric polarisation.
dielectric hysteresis.
Answer
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Electromagnetic Field Theory
Magnetic field intensity at centre of circular coil, of diameter 1 m and carrying a current of 2 A is
1 A/m.
8 A/m.
4 A/m.
2 A/m.
1 A/m.
8 A/m.
4 A/m.
2 A/m.
Answer
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Electromagnetic Field Theory
A satellite that simply reflect back the signals from one region of the earth to the other region is known as
Orbiting satellite
Active satellite
Geostationary satellite
Passive satellite
Orbiting satellite
Active satellite
Geostationary satellite
Passive satellite
Answer
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Electromagnetic Field Theory
The magnitude of force acting on a current carrying conductor placed in a magnetic field is independent of
current flowing through the conductor.
length of conductor.
flux density.
cross-sectional area of conductor.
current flowing through the conductor.
length of conductor.
flux density.
cross-sectional area of conductor.
Answer
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