Which one of the following is not the source of electricity?

Options

A. Electric source
B. Radio
C. Battery
D. Dry cell

Answer

To determine which option is not a source of electricity, we can follow these steps:

### Step 1: Understand the Definition of a Source of Electricity
A source of electricity is something that produces or generates electrical energy. Common sources include batteries, generators, and solar panels.

### Step 2: Analyze the Given Options
We need to evaluate each option provided in the question to see if it produces electricity or not.

### Step 3: Evaluate Each Option
1. **Battery**: A battery is a source of electricity as it stores chemical energy and converts it into electrical energy.
2. **Dry Cell**: A dry cell is also a source of electricity, similar to a battery, as it generates electrical energy from chemical reactions.
3. **Radio**: A radio does not produce electricity; instead, it converts electrical energy into sound energy. It requires electricity to operate but does not generate it.

### Step 4: Identify the Correct Answer
Based on the evaluation, the radio is the option that does not serve as a source of electricity. Therefore, the answer to the question is the radio.

### Final Answer
The option that is not a source of electricity is **Radio**.

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