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Electromagnetic Field Theory

Electromagnetic Field Theory
Which of the following is zero in relation to electromagnetic fields?

 Curl curl A.
 Grad div A.
 Div curl A.
 Div grad V.

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Electromagnetic Field Theory
Electric field strength of charge

 Decrease with distance.
 Decrease with square distance.
 Increase distance.
 Increase square distance.

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Electromagnetic Field Theory
The minimum height of outer atmosphere is

150 km
400 km
100 km
200 km

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Electromagnetic Field Theory
Unit of electric flux density is

 coulomb / meter2.
 farad / meter.
 weber / meter2.
 coulomb.

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Electromagnetic Field Theory
The principle of dynamically induced emf is utilized in a

 generator.
 transformer.
 thermocouple.
 choke.

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Electromagnetic Field Theory
Fleming's right hand rule may be applied to an electric generator to find out the direction of

 rotor rotation.
None of these
 magnetic field.
 induced emf.

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