The charge on positron is equal to the charge on which one of the following

Options

A. Proton
B. Electron
C. `alpha-`particles
D. Neutron

Explanation

To determine the charge on a positron and find which particle it is equal to, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Charge of a Positron**:
- A positron is the antiparticle of an electron. It has the same mass as an electron but carries a positive charge.
- The charge of a positron is +1e, where e is the elementary charge (approximately \(1.6 \times 10^{-19}\) coulombs).

2. **Examine the Options**:
- **Option 1: Proton** - The charge of a proton is also +1e.
- **Option 2: Electron** - The charge of an electron is -1e.
- **Option 3: Alpha Particle** - An alpha particle consists of 2 protons and 2 neutrons, giving it a charge of +2e.
- **Option 4: Neutron** - A neutron has no charge, so its charge is 0.

3. **Compare the Charges**:
- Now, we compare the charge of the positron (+1e) with the charges of the other particles:
- Proton: +1e (matches)
- Electron: -1e (does not match)
- Alpha Particle: +2e (does not match)
- Neutron: 0 (does not match)

4. **Conclusion**:
- The charge on a positron is equal to the charge on a proton.

### Final Answer:
The charge on a positron is equal to the charge on a **proton**.

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