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ELECTROMAGNETIC FIELD THEORY

Electromagnetic Field Theory
In above problem, if the inductance L1 and L2 in series aiding with 30 mH mutual inductance, then total inductance will be

 200 mH.
 50 mH.
 150 mH.
 100 mH.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
The force experienced by a current carrying conductor lying parallel to a magnetic field is

 Bil cosθ.
 BIL.
 Bil sinθ.
 zero.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
A magnetic circuit requires 800 AT to produce a certain quantity of flux in a magnetic circuit. If its excitation coil has 100 turns and 5 Ohm resistance, the voltage to be applied in exciting coil is

 80 V.
 40 V.
 8 V.
 60 V.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
The energy stored in the magnetic field at a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying an current at 10 A, is

 1.15 J.
 0.15 J.
 0.015 J.
 0.5 J.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
A coil of 300 turns is wound on a non-magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The current of 3 A will be

 113.04 µH.
 113.04 mH.
 37.68 mH.
 37.68 µH.

ANSWER DOWNLOAD EXAMIANS APP
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