Electric Circuits A current is said to be alternating when it changes in none of these. both ‘a’ and ‘b’. magnitude. direction. none of these. both ‘a’ and ‘b’. magnitude. direction. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits During electroplating the amounts of different substances liberated by same quantity of electricity are proportional to their atomic numbers. valency. atomic weights. chemical equivalents. atomic numbers. valency. atomic weights. chemical equivalents. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A voltage of v = 100 sin (wt + π/3) is applied to pure resistor of 30 Ohm. What is the RMS value of current is 5.77. 1.92. 2.36. 4.71. 5.77. 1.92. 2.36. 4.71. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The current in a chemical cell is a movement of positive hole charges. positive ions only. negative ions only. positive and negative ions. positive hole charges. positive ions only. negative ions only. positive and negative ions. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 10Ω resistor is stretched to increase its length double. Its resistance will now be 40 Ω. 20 Ω. 5 Ω. 10 Ω. 40 Ω. 20 Ω. 5 Ω. 10 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits i) In star connection line current is equal to phase current. ii) In delta connection line voltage is equal to phase voltage. For a given phase connected to the particular line which of the statement is true ? None of these. Only (2). Only (1). Both (1) and (2). None of these. Only (2). Only (1). Both (1) and (2). ANSWER DOWNLOAD EXAMIANS APP
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