Electromagnetic Field Theory The energy stored in the magnetic field in a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying a current at 10 amp, is 0.015 joule. 0.15 joule. 0.015 joule. 1.15 joule. 0.015 joule. 0.15 joule. 0.015 joule. 1.15 joule. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The field at any point on the axis of a current carrying coil will be at angle of 45° with the axis. perpendicular to the axis. zero. parallel to axis. at angle of 45° with the axis. perpendicular to the axis. zero. parallel to axis. 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 None of these Transmission efficiency Loss coefficient Front to back ratio None of these Transmission efficiency ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main disadvantage of the two-hole directional coupler is Poor directivity Narrow bandwidth High standing wave ratio Low directional coupling Poor directivity Narrow bandwidth High standing wave ratio Low directional coupling ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The useful magnetic flux obtainable from any closed surface is Constant None of these Both A and B Unity Constant None of these Both A and B Unity ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If E is the electric field intensity, then what is the value of divergence of (curl of E)? | E |. E. Null vector. Zero. | E |. E. Null vector. Zero. ANSWER DOWNLOAD EXAMIANS APP
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