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 100 V. 125 V. 75 V. 0 V. 100 V. 125 V. 75 V. 0 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A external resistance R is connected to a cell of internal resistance r, then the current is maximum when None of these R = r. R > r. R < r. None of these R = r. R > r. R < r. 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. 196 AT / m. 144 AT / m. 222 AT / m. 72 AT / m. 196 AT / m. 144 AT / m. 222 AT / m. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Condition for a balanced 3 - phase load is that, each phase has the same value of __________________. impedance. all of these. power factor. resistance. impedance. all of these. power factor. resistance. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In RLC series circuit R = 2Ω, L = 2mH and C = 1μF. Find the time constant of the circuit? 2 msec 2 μsec 1 μsec 4 msec 2 msec 2 μsec 1 μsec 4 msec ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Time constant is the time taken for response to rise -------of maximum value? 90% 68.3% 100% 63.2% 90% 68.3% 100% 63.2% ANSWER DOWNLOAD EXAMIANS APP
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