Electric Circuits A piece of copper and another piece of germanium are cooled from room temperature to 80K. The resistance of each of them decreases. copper increases and germanium decreases. each of them increases. copper decreases and germanium increases. each of them decreases. copper increases and germanium decreases. each of them increases. copper decreases and germanium increases. 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. 1:8. 1:2. 1:1. 4:1. 1:8. 1:2. 1:1. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits KVL works on the principle of both. law of conservation of energy. None of these law of conservation of charge. both. law of conservation of energy. None of these law of conservation of charge. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Time constant of RL series circuit is 2RC 2L/R L/R RC 2RC 2L/R L/R RC ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which metal is deposited for electro forming? Silver. Chromium. Nickel. Iron. Silver. Chromium. Nickel. Iron. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Three identical inductors are connected in delta with a 220 V, 50 Hz, 3 - φ, supply. If the phase current is 24 A, then what is the value of each of the inductance? 0.058 H. 0.029. 0.049 H. None of these. 0.058 H. 0.029. 0.049 H. None of these. ANSWER DOWNLOAD EXAMIANS APP
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