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 800 Ω. 4 Ω. 40 Ω. 400 Ω. 800 Ω. 4 Ω. 40 Ω. 400 Ω. 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. 10 Hz. 1 Hz. 1000 Hz. 100 Hz. 10 Hz. 1 Hz. 1000 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Internal resistance of ideal current source is finite zero 100 ohms infinite finite zero 100 ohms infinite ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The rms value of sinusoidal voltage wave V = 200sinω0t 200 V. 100 V. 200√2 V. 100√2 V. 200 V. 100 V. 200√2 V. 100√2 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The maximum power that can be transferred to the load resistor R from the voltage source in the figure is 1 W. 7.5 W. 6/8W. 9/8 W. 1 W. 7.5 W. 6/8W. 9/8 W. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The greater the internal resistance of a cell the greater the emf. the lesser the terminal voltage. the lesser the emf. the greater the terminal voltage. the greater the emf. the lesser the terminal voltage. the lesser the emf. the greater the terminal voltage. ANSWER DOWNLOAD EXAMIANS APP
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