A coil of insulated copper wire is connected to galvanometer. What would happen if a bar magnet is
(i) pushed into the coil?
(ii) withdrawn from inside the coil?
(iii) held stationary inside the coil?

Explanation

To solve the question regarding the behavior of a galvanometer connected to a coil of insulated copper wire when a bar magnet is manipulated, we will analyze each scenario step by step.

### Step-by-Step Solution:

**(i) When a bar magnet is pushed into the coil:**
1. **Understanding the Setup:** The coil of insulated copper wire is connected to a galvanometer. The galvanometer is used to detect the presence of electric current.
2. **Action:** When the bar magnet is pushed into the coil, the magnetic field around the coil changes.
3. **Induction of Current:** According to Faraday's law of electromagnetic induction, a change in magnetic field within a closed loop induces an electromotive force (EMF), which leads to the flow of current.
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