Electric Circuits A conductor of length l meters moves at right angles to a uniform magnetic field of flux density B = 1.5 T. if the velocity of revolution of the conductor is 50 ms-1 then induced e.m.f. in the conductor is 0 V. 125 V. 100 V. 75 V. 0 V. 125 V. 100 V. 75 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In which braking back emf exceeds supply voltage? None of these. Regenerative. Dynamic. Plugging. None of these. Regenerative. Dynamic. Plugging. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The voltage across R and L in a series RL circuit are found to be 200 V and 150 V respectively the rms value of the voltage across the series combination is ______ V. 250 360 450 200 250 360 450 200 ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which variety of copper has the best mechanical strength ? Soft copper. Hard drawn copper. Cast copper. Annealed copper. Soft copper. Hard drawn copper. Cast copper. Annealed copper. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A wire 2.5 m long is bent into a square. An current of 100 A flowing through the wire will produce a magnetizing force at the center of the square, equal to 72 AT / m. 144 AT / m. 222 AT / m. 196 AT / m. 72 AT / m. 144 AT / m. 222 AT / m. 196 AT / m. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The common voltage across parallel branches with different voltage sources can be determined by the relation V = (V1 / R1 + V2 / R2 + V3 / R3) / (1 / R1 + 1 / R2 +1 / R3 .....) The statement is associated with which theorem? Norton’s theorem. Thevenin’s theorem. Millman’s theorem. Superposition theorem. Norton’s theorem. Thevenin’s theorem. Millman’s theorem. Superposition theorem. ANSWER DOWNLOAD EXAMIANS APP
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