Question

What is the value of force on a closed circuit in a magnetic field?

Hint:

When a current-carrying conductor is placed in a magnetic field, the force is maximized when the magnetic field is perpendicular to the direction of current flow.

Answer 1

Step 1: Understanding the force on a conductor in a magnetic field.
When a current-carrying conductor is placed in a magnetic field, a force is exerted on the conductor. This force depends on several factors, such as the current, the magnetic field strength, the length of the conductor, and the angle between the magnetic field and the current direction.
Step 2: Formula for the force.
The force \( F \) on a conductor of length \( l \), carrying a current \( I \), in a magnetic field of strength \( B \), is given by: \[ F = I \cdot B \cdot l \cdot \sin(\theta) \] where \( \theta \) is the angle between the direction of the magnetic field and the current.
Step 3: Conclusion.
The value of the force on a closed circuit in a magnetic field is determined by the equation \( F = I \cdot B \cdot l \cdot \sin(\theta) \).