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Consider the following statement: a) When resistance is connected to the AC source, the current leads the voltage. b) When resistance is connected to the AC source, the current lags behind the voltage. c) When resistance is connected to the AC source, the current and the voltage are in the same phase. Which of the following statement is correct?

Consider the following statement: a) When resistance is connected to the AC source, the current leads the voltage. b) When resistance is connected to the AC source, the current lags behind the voltage. c) When resistance is connected to the AC source, the current and the voltage are in the same phase. Which of the following statement is correct? Correct Answer Only c is correct

CONCEPT:

Resistor: 

  • It is an electrical component that has two terminals and it is used for either limiting or regulating the flow of electric current in electrical circuits.
  • A circuit that has the only resistor is known as a resistive circuit.

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EXPLANATION:

  • We know that when the resistance (R) is connected alone in the circuit, the phase difference between the A.C. and e.m.f. is zero.
  • Phasor diagram: Both are in the same phase

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  • So when resistance is connected to the AC source, the current and the voltage are in the same phase. Hence, option 3 is correct.

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