Why an electric bulb becomes dim when an electric heater in parallel circuit is switched on? Why dimness decreases after some time?

Explanation

To understand why an electric bulb becomes dim when an electric heater in a parallel circuit is switched on, and why the dimness decreases after some time, we can break down the explanation into several steps.

### Step-by-Step Solution:

1. **Understanding the Circuit Configuration**:
- The electric bulb and the electric heater are connected in parallel. In a parallel circuit, the voltage across each component is the same.

2. **Power and Resistance Relationship**:
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