Electromagnetic Field Theory How much current must flow in a loop of radius 1m to produce a magnetic field of 1 mA/m? 2 mA. 1mA. 2.5 mA. 1.5 mA. 2 mA. 1mA. 2.5 mA. 1.5 mA. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The wave in wave guide has Larger wavelength than in the free space Group velocity inversely proportional to wavelength Larger frequency than in the free space Diminishing wavelength than in the free space Larger wavelength than in the free space Group velocity inversely proportional to wavelength Larger frequency than in the free space Diminishing wavelength than in the free space ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A fan blade of length 2R rotates in a time period T in a magnetic field B. The induced voltage in the blade is proportional to R2B / T. R2BT. RBT. 2RBT. R2B / T. R2BT. RBT. 2RBT. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When a single turn coil rotates in a uniform magnetic field at a uniform speed, the induced emf will be alternating. none of these. steady. pulsating. alternating. none of these. steady. pulsating. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In a lossless medium the intrinsic impedance η = 60π and μr = 1. The relative dielectric constant εr shall be 4. 8. 2. 1. 4. 8. 2. 1. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The energy stored in the magnetic field in a solenoid 10 cm long and 4 cm diameter wound with 2000 turns of wire carrying a current at 20 amp, is 24 joules. 15 joules. 30 joules. 12 joules. 24 joules. 15 joules. 30 joules. 12 joules. ANSWER DOWNLOAD EXAMIANS APP
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