Electric Circuits A piece of copper and another piece of germanium are cooled from room temperature to 80K. The resistance of each of them increases. copper increases and germanium decreases. copper decreases and germanium increases. each of them decreases. each of them increases. copper increases and germanium decreases. copper decreases and germanium increases. each of them decreases. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If a function is shifted by 'T', then it is correctly represented as f (t-T) u (t-T). f (t-T) u (t). f (t) u (t). f (t) u (t-T). f (t-T) u (t-T). f (t-T) u (t). f (t) u (t). f (t) u (t-T). ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Phase voltages of a star connected alternator are ER = 240∠0o V, EY = 240∠-120o V and EB = 240∠ + 120o V. What is the phase sequence of the system? BYR. RBY. RYB. YBR. BYR. RBY. RYB. YBR. 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 1:2. 1:8. 4:1. 1:1. 1:2. 1:8. 4:1. 1:1. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In RLC parallel circuit if current through capacitor and inductor is equal. Then What is the power factor? zero unity lagging leading zero unity lagging leading ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In the given figure, the Thevenins equivalent voltage and impedance as seen from the terminals P - Q is given by 2 V and 7.5 Ω. 2 V and 5 Ω. 4 V and 5 Ω. 4 V and 7.5 Ω. 2 V and 7.5 Ω. 2 V and 5 Ω. 4 V and 5 Ω. 4 V and 7.5 Ω. ANSWER DOWNLOAD EXAMIANS APP
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