Electric Circuits A variable capacitance is one whose capacitance changes with time. changes with temperature. can be changed manually or by mechanical force. changes with voltage. changes with time. changes with temperature. can be changed manually or by mechanical force. changes with voltage. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In the circuit shown below if I = 2 A then find V? 1 V. 3 V. 5 V. 2 V. 1 V. 3 V. 5 V. 2 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 2m long conductor, carries a current of 50 A at a magnetic field of 100 × 10 − 3 T. The force on the conductor is 10 N. 1000 N. 10000 N. 100 N. 10 N. 1000 N. 10000 N. 100 N. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When the internal resistance of a cell is large compared to the external resistance in the circuit then high current can flow through the external resistance by grouping the cells as in series. mixed. in either series or parallel. in parallel. as in series. mixed. in either series or parallel. in parallel. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If a resistor and an inductor are connected in series across a voltage source. Which two parameters in that circuit decrease if frequency of voltage source increases? VR and I. VL and VR. VL and Z. Z and I. VR and I. VL and VR. VL and Z. Z and I. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor is connected to supply with switch and the switch is connected between capacitor and supply. Initially switch is open at time zero, and then switch is closed. Then how capacitor behaves at time t = 0+? short circuit. dielectric losses increases. open circuit. dielectric losses decreases. short circuit. dielectric losses increases. open circuit. dielectric losses decreases. ANSWER DOWNLOAD EXAMIANS APP
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