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? 10 Hz. 1000 Hz. 100 Hz. 1 Hz. 10 Hz. 1000 Hz. 100 Hz. 1 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of heater will decrease. none of these. increase. remain constant. decrease. none of these. increase. remain constant. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following is not equivalent to watts? Ampere-volts. Joules per second. Ampere2 – Ohm. Amperes/volt. Ampere-volts. Joules per second. Ampere2 – Ohm. Amperes/volt. ANSWER DOWNLOAD EXAMIANS APP
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 The rms value of the voltage U(t)= 3 + 4cos(3t) 7 V. {3 + 2(1.141)} V. 5 V. 4.123 V. 7 V. {3 + 2(1.141)} V. 5 V. 4.123 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The ratio of electric flux density to electric field intensity is called ......... of medium capacitance permeability reluctance permittivity capacitance permeability reluctance permittivity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS