Electromagnetic Field Theory If in a 1 mF capacitor, an instantaneous displacement current of 1 A is to be established in the spaces between its plates then it is possible by applying 106 volts/sec. 106 Amp/sec. 106 volts. 106 Amp. 106 volts/sec. 106 Amp/sec. 106 volts. 106 Amp. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The electrical field strength at a distance point A due to a point charge +q, located at the origin, is 100 µl v/m. If the point charge is now enclosed by a perfectly conducting metal sheet sphere whose centre is at origin, A, outside the sphere, becomes 100 μ v/m. - 100 μ v/m. None of above. 0. 100 μ v/m. - 100 μ v/m. None of above. 0. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The hysteresis loop of a magnetic material has an area of 5 cm2 with the scale given as 1 cm = 2 AT and 1 cm = 50 mwb At 50 Hz; the total hysteresis loss is 20 W. 50 W. 25 W. 15 W. 20 W. 50 W. 25 W. 15 W. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory How much current must flow in a loop of radius 1m to produce a magnetic field of 1 mA/m? 1.5 mA. 2.5 mA. 2 mA. 1mA. 1.5 mA. 2.5 mA. 2 mA. 1mA. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Due to which of the following reasons a lightning conductor on top of a building is made into a pointed spike? Charge per unit area becomes very high for lightening to discharge Rain drops may not collect None of these Dust particles may not accumulate Charge per unit area becomes very high for lightening to discharge Rain drops may not collect None of these Dust particles may not accumulate ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which statement does not say that electrostatic field is conservative? If is gradient of a scalar potential. If the curl of E is identically zero. The potential difference between two points is zero. The work done in a closed path inside the fields is zero. If is gradient of a scalar potential. If the curl of E is identically zero. The potential difference between two points is zero. The work done in a closed path inside the fields is zero. ANSWER DOWNLOAD EXAMIANS APP
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