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Electromagnetic Field Theory

Electromagnetic Field Theory
When a conductor moves in the field, so that it makes an angle 8 with the lines of flux, the force F is given as : F = Bl sin2 0.

Yes
No

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Electromagnetic Field Theory
A vector field A = p In is given in Cartesian coordinates. In cylindrical coordinates it will be represented as

 A = cosφ Ir + sinφ Iφ.
 A = cosφ Ir - sinφ Ir.
 A = sinφ Ir.
 A = cosφ Ir.

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Electromagnetic Field Theory
The magnetic intensity in A/m at the centre of circular coil of diameter 1m and carrying a current of 2A is

 2.
 3.
 4.
 8.

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Electromagnetic Field Theory
Which of following is not a unit of flux?

 All of above.
 Maxwell.
 Telsa.
 Weber.

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Electromagnetic Field Theory
A long straight wire carries a current I = 10A. At what distance is the magnetic field H = 1A/m?

 1.39 m.
 1.29 m.
 1.59 m.
 1.19 m.

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Electromagnetic Field Theory
A square corner reflector is used in which of the following?

Radio astronomy
TV broadcast
All of these
Point-to-point communication

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