Electromagnetic Field Theory Between a hollow and solid metal sphere, charge reside None of above. on outer surface in hollow and throughout in solid. on outer surface in both. on outer surface in hollow and throughout in solid None of above. on outer surface in hollow and throughout in solid. on outer surface in both. on outer surface in hollow and throughout in solid ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2 × 10-8 C. Potential developed will be 900 V. 200 V. 1800 V. 0 V. 900 V. 200 V. 1800 V. 0 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In case of antenna the ratio of the power radiated in the desired direction to the power radiated in the opposite direction is known as Loss coefficient Front to back ratio Transmission efficiency None of these Loss coefficient Front to back ratio Transmission efficiency None of these 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 0.015 J. 0.5 J. 1.15 J. 0.15 J. 0.015 J. 0.5 J. 1.15 J. 0.15 J. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A voltage waveform V(t) = 12t2 is applied across a 1H inductor for t = 0, with initial current through it being zero. The current through the inductor for t = 0 is given by 24t. 4t3. 12t. 12t3. 24t. 4t3. 12t. 12t3. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The heating time constant of an electrical machine gives an indication of its rating. cooling. short time rating. overload capacity. rating. cooling. short time rating. overload capacity. ANSWER DOWNLOAD EXAMIANS APP
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