Define electric power. Derive an expression for power in terms of current and resistance. An electric bulb is connected to a 200 V generator. The current is 0.5 A. What is the power of the bulb?

Explanation

### Step-by-Step Solution:

1. **Definition of Electric Power**:
Electric power is defined as the rate at which electrical energy is consumed or converted into other forms of energy per unit time. It is measured in watts (W), where 1 watt is equal to 1 joule per second.

2. **Deriving the Expression for Power**:
- The basic formula for power (P) is given by:
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