What is the force experienced by a charged particle of charge moving from east to west with a velocity v in a magnetic field B, acting vertically downwards?

Explanation

To find the force experienced by a charged particle moving in a magnetic field, we can use the formula for the magnetic force acting on a charged particle:

### Step-by-Step Solution:

1. **Identify the Given Information**:
- Charge of the particle: \( q \)
- Velocity of the particle: \( v \) (moving from East to West)
- Magnetic field: \( B \) (acting vertically downwards)
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