| In the circuit of figure the bulb will become suddenly bright if: |
 |
A) Contact is made or broken
B) Contact is made
C) Contact is broken
D) Would not become bright at all
Correct Answer: C
Solution :
When contact is broken net emf is e + E i.e. emf get increased. Here e is the induced emf in L due to abrupt charge in current or breaking of contact, as we can see emf is increased so brightness of bulb increases.
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