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 change of flux linkage is minimum. rate of cutting flux by coil sides is minimum. rate of change of flux linkage is maximum. flux linking with the coil is maximum. rate of change of flux linkage is minimum. rate of cutting flux by coil sides is minimum. rate of change of flux linkage is maximum. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A circuit with resistor, inductor, capacitor in series is resonant of 50 Hz. If all the values are now doubled, the new resonant frequency is still f0. f0 / 4. f0 / 2. 2f0. still f0. f0 / 4. f0 / 2. 2f0. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The resistance of a strip of copper of rectangular cross section is 2 Ω. A metal of resistivity twice that of a copper is coated on its upper surface to a thickness equal to that of copper strip. The resistance of composite strip will be 3 / 4 Ω. 3 / 2 Ω. 4 / 3 Ω. 6 Ω. 3 / 4 Ω. 3 / 2 Ω. 4 / 3 Ω. 6 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Addition of which of the following substance in electrolyte helps in producing bright finish? Glycerine. Any of above. Dextrol. Phenol. Glycerine. Any of above. Dextrol. Phenol. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The capacitance of a conductor is varying from 2 microfarad to zero in 1 sec linearly if the voltage applied to it is 6 V the energy stored in 0.5 sec in the condenser is 18 µ joules. 10 µ joules. 20 µ joules. 55.1 µ joules. 18 µ joules. 10 µ joules. 20 µ joules. 55.1 µ joules. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Cells are connected in parallel in order to increase current capacity. life of the cells. voltage rating. efficiency. current capacity. life of the cells. voltage rating. efficiency. ANSWER DOWNLOAD EXAMIANS APP
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