Electric Circuits Two wires of A and B of the same material and length ‘l’ and ‘2l’ have radius ‘r’ and ‘2r’ respectively. The ratio of their specific resistance will be 4:1. 1:2. 1:1. 1:8. 4:1. 1:2. 1:1. 1:8. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Resistor stores the energy in the form of magnetic field. None of these both A and B. electrical field. magnetic field. None of these both A and B. electrical field. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Find the total power absorbed by the resistor in the given circuit. 30 W. 12 W. 24 W. 6 W. 30 W. 12 W. 24 W. 6 W. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The energy required to charge a 10 μF capacitor to 100 V is 0.05 J. 0.01 J. 10 × 10-9 J. 5 × 10-9 J. 0.05 J. 0.01 J. 10 × 10-9 J. 5 × 10-9 J. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 10 μF capacitor and 100 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow brightest? 100 Hz. 1 Hz. 10 Hz. 1000 Hz. 100 Hz. 1 Hz. 10 Hz. 1000 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following has no units? Permittivity Moment of a magnet Magnetic susceptibility Permeability Permittivity Moment of a magnet Magnetic susceptibility Permeability ANSWER DOWNLOAD EXAMIANS APP