Electric Circuits A current is said to be alternating when it changes in magnitude. direction. none of these. both ‘a’ and ‘b’. magnitude. direction. none of these. both ‘a’ and ‘b’. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In a lead acid cell, hydrogen is liberated at none of the plates. positive plate. negative plate. both plates. none of the plates. positive plate. negative plate. both plates. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Number of branches of a graph should be --------- number of branches of a network less than greater than equals to less than equals to less than greater than equals to less than equals to ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Four resistances 80 Ohm, 50 Ohm, 25 Ohm and R are connected in parallel. Current through 25 Ohm resistance is 4A. Total current of supply is 10A. The value of R will be 76.66. 66.66. 40.25. 36.36. 76.66. 66.66. 40.25. 36.36. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following may be the value of resistivity of copper at absolute zero in ohm-metre? 3.12. 6.24. 0.020. 1.56. 3.12. 6.24. 0.020. 1.56. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 60 Hz frequency voltage would cause a bulb to turn on and off 70 times per second. 60 times per second. 120 times per second. 80 times per second. 70 times per second. 60 times per second. 120 times per second. 80 times per second. ANSWER DOWNLOAD EXAMIANS APP
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