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 12t3. 4t3. 24t. 12t. 12t3. 4t3. 24t. 12t. ANSWER DOWNLOAD EXAMIANS APP
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 150 mH. 50 mH. 100 mH. 200 mH. 150 mH. 50 mH. 100 mH. 200 mH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory As a result of reflection from a plane conducting wall, electromagnetic waves acquire an apparent velocity greater than the velocity of light in space. This is called the phase velocity. velocity of propagation. normal velocity. group velocity. phase velocity. velocity of propagation. normal velocity. group velocity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The power gain of a half-wave dipole with respect to an isotropic radiator is 4.15 db 6 db 2.15 db 3 db 4.15 db 6 db 2.15 db 3 db 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 200 V. 1800 V. 0 V. 900 V. 200 V. 1800 V. 0 V. 900 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory MUF is highest in periods of greatest sunspot activity. True False True False ANSWER DOWNLOAD EXAMIANS APP
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