The fingers of your right hand are wrapped around a current-carrying solenoid. Your right thumb is at a 90° angle to your fingers and is pointing right. What is the direction of the current in the solenoid?

Question

Down the front of the coil.
Left at the front of the coil.
Right at the front of the coil.
Up the front of the coil.

Answer 1

The right-hand rule can be used to determine the direction of the current in the solenoid. According to the right-hand rule, if you wrap your right hand fingers around the solenoid in the direction of the current, your thumb will point in the direction of the magnetic field created by the current. In this case, since your right thumb is pointing to the right, the direction of the current in the solenoid is from left to right at the front of the coil. Therefore, the correct answer is "Right at the front of the coil."