MCQ
In an induction coil, the secondary $e.m.f.$ is
- AZero during break of the circuit
- BVery high during make of the circuit
- CZero during make of the circuit
- ✓Very high during break of the circuit
✓
Answer
Correct option: D.
Very high during break of the circuit
d
When the circuit break, current in circuit become zero in very small time. therefore $\frac{\text { di }}{\text { di }}$ will be high.Hence induce e.m.f. will be high.
When the circuit break, current in circuit become zero in very small time. therefore $\frac{\text { di }}{\text { di }}$ will be high.Hence induce e.m.f. will be high.
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