BPSC – Combined Competitive Examination · வினா 129
During a short circuit, the value of electric current in the circuit:
விடையைக் காட்டு & விளக்கம்
விடை: (C) Increases very sharply
விளக்கம்
In a short circuit, live and neutral touch, resistance falls almost to zero and current rises sharply.
- (A) தவறு
Wrong: resistance drops, so current rises.
- (B) தவறு
Wrong: current changes sharply.
- (C) சரி
Correct: near-zero resistance makes current (I = V/R) very large.
- (D) தவறு
Wrong: the defining feature is a sudden large rise.