Electric Circuits A piece of copper and another piece of germanium are cooled from room temperature to 80K. The resistance of copper increases and germanium decreases. each of them decreases. each of them increases. copper decreases and germanium increases. copper increases and germanium decreases. each of them decreases. each of them increases. copper decreases and germanium increases. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The value of supply voltage for 400 W, 4 Ω load is 400 V. 40 V. 200 V. 20 V. 400 V. 40 V. 200 V. 20 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In the given figure the value of the source voltage is 44 V. 30 V. 24 V. 12 V. 44 V. 30 V. 24 V. 12 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A motor having a power factor of 0.8 absorbs in active power of 1200 W the reactive power drawn from the supply is _________ VA. 250 900 400 130 250 900 400 130 ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If C be the capacitance, V be the potential difference and I be the current, then I / CV will have the unit of time. frequency. reactive power. power. time. frequency. reactive power. power. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits An electric field can deflect gamma-rays. neutrons. alpha particles. x-rays. gamma-rays. neutrons. alpha particles. x-rays. ANSWER DOWNLOAD EXAMIANS APP
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