Electric Circuits If the length of a wire of resistance R is uniformly stretched to n times its original value, what will be its new resistance n2 / R. nR . R / n2. n2R. n2 / R. nR . R / n2. n2R. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Three capacitors each of capacity C are given. The resultant capacity (2/3) C can obtained by using them two in parallel and third in series with this combination. all in parallel. all in series. two in series and third in parallel across this combination. two in parallel and third in series with this combination. all in parallel. all in series. two in series and third in parallel across this combination. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In a capacitor, the electrical energy is stored in both ‘electric field’ and magnetic field’. electric field. magnetic field. none of above. both ‘electric field’ and magnetic field’. electric field. magnetic field. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The voltage across the 1kΩ resistor between the nodes A and B of the network shown in the given figure is 1 V. 2 V. -2 V. -1 V. 1 V. 2 V. -2 V. -1 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The current in a chemical cell is a movement of positive ions only. negative ions only. positive and negative ions. positive hole charges. positive ions only. negative ions only. positive and negative ions. positive hole charges. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The maximum power that can be transferred to the load resistor R from the voltage source in the figure is 6/8W. 7.5 W. 9/8 W. 1 W. 6/8W. 7.5 W. 9/8 W. 1 W. ANSWER DOWNLOAD EXAMIANS APP
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