Electromagnetic Field Theory A sphere of radius with a uniform charge density ρv C/m3 shall have electric flux density at radius “r = a” equal to aρv/3 C/m2. aρv/4 C/m2. aρv C/m2. ρv/3 C/m2. aρv/3 C/m2. aρv/4 C/m2. aρv C/m2. ρv/3 C/m2. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For an inductor, current is proportional to none of them. voltage across the inductor. both (A) and (B). magnetic field. none of them. voltage across the inductor. both (A) and (B). magnetic field. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The wave in wave guide has Diminishing wavelength than in the free space Group velocity inversely proportional to wavelength Larger wavelength than in the free space Larger frequency than in the free space Diminishing wavelength than in the free space Group velocity inversely proportional to wavelength Larger wavelength than in the free space Larger frequency than in the free space ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Electric field intensity (E) at ant point in an electric field is equal to (potential gradient)1/3. (potential gradient)2. potential gradient. (potential gradient)1/2. (potential gradient)1/3. (potential gradient)2. potential gradient. (potential gradient)1/2. 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 30 joules. 24 joules. 12 joules. 15 joules. 30 joules. 24 joules. 12 joules. 15 joules. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Electric flux in coulombs emanating from any surface of a cube containing C coulombs of charge at its centre is 4πQ / 6ε. Q / 6. Q / 6ε. Q / 4π. 4πQ / 6ε. Q / 6. Q / 6ε. Q / 4π. ANSWER DOWNLOAD EXAMIANS APP
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