An electrical circuit is assembled, in which one conductor is placed between the poles of an arched magnet.

An electrical circuit is assembled, in which one conductor is placed between the poles of an arched magnet. When the circuit was closed, it deviated to the right, and the experimenter needed the conductor to deviate to the left. What does he need to change for this?

The direction of the force acting on the current-carrying conductor is determined using the left-hand rule. The lines of magnetic induction should enter the palm, four fingers should be extended along the streamline. The bent thumb will show in which direction the force is acting. If we change the direction of the current to the opposite, then in accordance with the rule, the hand will need to be turned 180 ° and the thumb will show the direction opposite to the initial one, that is, in – to the left.
Answer. Change the direction of the current to the opposite (rearrange the wires at the source terminals).