Consider two sections of wires with currents as shown. Select all correct answer

Question

Consider two sections of wires with currents as shown. Select all correct answers:

A) The magnetic field of the long wire points out of the paper at the location of the short wire. B) The force on the short wire due to the long wire is toward the left. C) The magnetic field of the long wire points into the paper at the location of the short wire. D) If the short wire were free to rotate about its fixed center (P), from the position shown, its inital rotation would be clockwise. E) The force on the short wire due to the long wire is toward the right.

Explanation / Answer

The magnetic field of the long wire points out of the paper at the location of the short wire.TRUE (USING RIGHT HAND RULE)

The force on the short wire due to the long wire is toward the right.- TRUE

The magnetic field of the long wire points into the paper at the location of the short wire.- FALSE

If the short wire were free to rotate about its fixed center (P), from the position shown, its initial rotation would be clockwise.- FALSE (USE Thump rule + right hand)

The force on the short wire due to the long wire is toward the right.- TRUE

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