Answer the following questions:
You are sitting in a room in which a strong magnetic field is directed from your left towards right: A beam of electrons is directed from front towards you. What would be ·the direction of magnetic force on this beam?

Explanation

To determine the direction of the magnetic force on a beam of electrons in a magnetic field, we can follow these steps:

### Step 1: Identify the Directions
- The magnetic field is directed from your left to your right. We can denote this direction as the positive x-axis.
- The beam of electrons is directed from the front towards you. We can denote this direction as the negative z-axis (since coming towards you is considered negative in this context).

### Step 2: Determine the Direction of Current
- Since electrons are negatively charged, the conventional current (which is the flow of positive charge) will flow in the opposite direction to the electron beam. Therefore, the current will flow from your back to your front, which is in the positive z-axis direction.
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