passpadi

2022

Physics

POST UTME

The magnitude of the force on a straight current carring conductor in a magnitude field is I. proportional to the angle between the conductor and field II. Inversely proportional to the field strength III. Proportional to the current passing through the conductor. Which of the statementsabove is/are correct?

A.

I only

B.

I and II only

C.

I and III only

D.

II and III only

Correct Answer:

I and III only

Explanation

F = Bil sinθ\theta

where B = magnetic field strength

i = current

l = lenght of conduction

θ\theta = angle between the conductor and the direction of field.

F = Bil sinθ\theta

where B = magnetic field strength

i = current

l = lenght of conduction

θ\theta = angle between the conductor and the direction of field.

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