In the figure below, a region with a constant magnetic field equal to 0.36 T int
ID: 1792453 • Letter: I
Question
In the figure below, a region with a constant magnetic field equal to 0.36 T into the page is shown. A single turn, rectangular loop of wire moves into this region with a speed of 18.7 m/s. The dimensions of the loop are a=0.34 m and b=0.6 m. The loop has a resistance of 1.79 .
A) While the loop is moving into the region of constant magnetic field, the direction of the induced magnetic field in the loop is:
B) While the loop is moving into the region of constant magnetic field, the magnitude of the induced current flowing in the loop is
C) While the loop is moving into the region of constant magnetic field, the direction of the magnetic force acting on the loop is:
Explanation / Answer
a) using the right-hand rule, the current will be induced towards + x and as per Lenz law , a magnetic file will be induced along north-south ( counterclockwise)
b)I = BLV/ R = 0.36 (0.6) (18.7) / 1.79 = 2.25 A
c)towards + x axis ( using right hand rule) F = q (V XB) , V points along+ y axis . B points along + z direction, so force will point along + x axis