Electric Circuits Emf induced in a coil rotating in a uniform magnetic field will be maximum when the flux linking with the coil is maximum. rate of cutting flux by coil sides is minimum. rate of change of flux linkage is maximum. rate of change of flux linkage is minimum. flux linking with the coil is maximum. rate of cutting flux by coil sides is minimum. rate of change of flux linkage is maximum. rate of change of flux linkage is minimum. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Fall time is the time required for a pulse to decrease from 90 to ________% if its maximum values 10 5 15 20 10 5 15 20 ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, cold resistance of a 100 W, 200 V lamp will be 40 Ω. 4 Ω. 800 Ω. 400 Ω. 40 Ω. 4 Ω. 800 Ω. 400 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 35 V source is connected to a series circuit of 600 Ω and R as shown. If a voltmeter of internal resistance 1.2 kΩ is connected across 600 Ω resistor, it reads 5 V. The value of R is 3.6 k Ω. 2.4 k Ω. 7.2 k Ω. 1.2 k Ω. 3.6 k Ω. 2.4 k Ω. 7.2 k Ω. 1.2 k Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 10Ω resistor is stretched to increase its length double. Its resistance will now be 10 Ω. 20 Ω. 40 Ω. 5 Ω. 10 Ω. 20 Ω. 40 Ω. 5 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the reactive power in AC operation? Real power × cosθ. Real power × sinθ. Apparent power × sinθ. Apparent power × cosθ. Real power × cosθ. Real power × sinθ. Apparent power × sinθ. Apparent power × cosθ. ANSWER DOWNLOAD EXAMIANS APP
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