Who discovered the concept of electric current ?

Options

A. Simon Ohm.
B. Benjamin Franklin.
C. Rutherford.
D. J.J Thomson.

Explanation

To answer the question "Who discovered the concept of electric current?" we can follow these steps:

### Step 1: Identify the options provided
The options given are:
1. Simon Ohm
2. Benjamin Franklin
3. Rutherford
4. JJ Thompson

### Step 2: Analyze the contributions of each individual
- **Simon Ohm**: Known for formulating Ohm's Law, which relates voltage, current, and resistance in an electrical circuit.
- **Benjamin Franklin**: Conducted early experiments with electricity and is known for his work on static electricity and the concept of positive and negative charges.
- **Rutherford**: Known primarily for his work in nuclear physics and the discovery of the nucleus, not directly related to electric current.
- **JJ Thompson**: Discovered the electron and contributed to the understanding of atomic structure, but not specifically the concept of electric current.

### Step 3: Determine who is most closely associated with the concept of electric current
While all these scientists contributed to the field of electricity, Simon Ohm is specifically recognized for his work that laid the foundation for understanding electric current through Ohm's Law.

### Step 4: Conclusion
The correct answer to the question is **Simon Ohm**.

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