Electromagnetic Field Theory The useful magnetic flux obtainable from any closed surface is Unity Constant Both A and B None of these Unity Constant Both A and B None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A negative point charge q = - 40 nC is moving with velocity of 6 × 106 m/s in a direction specited by unit vector uy + 0.6 uz. Find the magnitude of force vector on the moving particle by the field B = 2 ux + 3 uy + 5 uz mT and E = 2 ux - 3 uy + 5 uz KV/m 244 μN. 144 μN. 1144 μN. 1440 μN. 244 μN. 144 μN. 1144 μN. 1440 μN. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A circular loop has its radius increasing at a rate of 2 m/s. The loop placed perpendicular to a constant magnetic field of 0.5 wb/m2. When the radius of the loop is 4 m. the emf induced in the will be 0.4 π V. 0.8 π V. Zero. 8 π V. 0.4 π V. 0.8 π V. Zero. 8 π V. 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 4t3. 24t. 12t3. 12t. 4t3. 24t. 12t3. 12t. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A copper disc is rotated rapidly below a freely suspended magnetic needle. The magnetic needle starts rotating with velocity less than that of disc and in the same direction. equal to that of disc and in the opposite direction. less than that of disc but in opposite direction. equal to that of disc and in the same direction. less than that of disc and in the same direction. equal to that of disc and in the opposite direction. less than that of disc but in opposite direction. equal to that of disc and in the same direction. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A loop is rotating about x-axis in a magnetic field, B = BO cos(ω + φ) ay. The voltage in the loop is Due to transformer only. Zero. Due to rotating only. Due to both rotating and transformer action. Due to transformer only. Zero. Due to rotating only. Due to both rotating and transformer action. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS