Question

A 1 kg horizontal aluminum bar, 0.1 m long, is pushed by a force f between two vertical metal rods that are 0.1 m apart. A 0.1t magnetic field is directed perpendicular to the plane of the rods as indicated. A 5 �� resistor is connected across the two rods at the bottom. What is the direction of the current through the aluminum bar?

Answer 1

The direction of the current through the aluminum bar can be determined using the right-hand rule. If you point the thumb of your right hand in the direction of the force applied on the bar, and the fingers in the direction of the magnetic field, then the direction that your palm is facing will be the direction of the current.

Step-by-step explanation:

The direction of the current through the aluminum bar can be determined using the right-hand rule. If you point the thumb of your right hand in the direction of the force applied on the bar, and the fingers in the direction of the magnetic field, then the direction that your palm is facing will be the direction of the current. In this case, since the force is pushing the bar to the right and the magnetic field is directed out of the page, the current will flow from the bottom rod to the top rod.