The effects due to the interaction of a current-carrying loop with a magnetic fi

Question

The effects due to the interaction of a current-carrying loop with a magnetic field have many applications, some as common as the electric motor. This problem illustrates the basic principles of this interaction. Consider a current I that flows in a plane rectangular current loop with height a = 4.00 cm and horizontal sides b = 2.00 cm, (Figure.1). The loop is placed into a uniform magnetic field B in such a way that sides of length a are perpendicular to B, and there is an angle between the sides of length b and B, as shown in the figures. (Figure 2) Will the interaction of the current through the loop with the magnetic field cause the loop to rotate? This question will be shown afte ryou complete previous questons. This question will be shown after you complete previous question(s).

Explanation / Answer

For Part A , the second option will be the answer.

As we know , F = B*I*Sinx where x is the angle between breadth b and magnetic field B.

Using Fleming's Left Hand Rule we can determine the direction of current . As in this case the force will be counter-clockwise.

Felming's Left Hand Rule states that the directions of the magnetic field, the current, and the force exerted on the conductor are indicated respectively by the first finger, second finger, and thumb of the left hand when these are held out perpendicular to each other.

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