Electric Circuits Which of the following may be the value of resistivity of copper at absolute zero in ohm-metre? 1.56. 6.24. 0.020. 3.12. 1.56. 6.24. 0.020. 3.12. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Resistance of which material does not change with change in temperature? Metal alloys constantan and manganin. Brass. Platinum. Tungsten. Metal alloys constantan and manganin. Brass. Platinum. Tungsten. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The rms value of the resultant current in a wire which carries a DC current of 10A and a sinusoidal current of peak value 20A is 22.4A. 14.14A. 17.3A . 30A. 22.4A. 14.14A. 17.3A . 30A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The terminals across the source are ___________ if a voltage source is to be neglected. replaced by a series resistance. short circuited. replaced by a shunt resistance. open circuited. replaced by a series resistance. short circuited. replaced by a shunt resistance. open circuited. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Specific resistance is measured in mho. ohm - cm. ohm. ohm/cm. mho. ohm - cm. ohm. ohm/cm. 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? RBY. BYR. YBR. RYB. RBY. BYR. YBR. RYB. ANSWER DOWNLOAD EXAMIANS APP
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