Electromagnetic Field Theory A waveguide operated below cut off frequency can be used as An isolator An attenuator Phase shifter None An isolator An attenuator Phase shifter None ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The skip distance is the maximum distance upto which ionospheric reflection is possible. False True False True ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The principle of dynamically induced emf is utilized in a generator. transformer. choke. thermocouple. generator. transformer. choke. thermocouple. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two straight parallel conductors carry equal currents in opposite direction. The force between them is attractive. repulsive. zero. none of above. attractive. repulsive. zero. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which statement does not say that electrostatic field is conservative? If is gradient of a scalar potential. The potential difference between two points is zero. If the curl of E is identically zero. The work done in a closed path inside the fields is zero. If is gradient of a scalar potential. The potential difference between two points is zero. If the curl of E is identically zero. The work done in a closed path inside the fields is zero. 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 0.5 J. 0.015 J. 0.15 J. 1.15 J. 0.5 J. 0.015 J. 0.15 J. 1.15 J. ANSWER DOWNLOAD EXAMIANS APP
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