Five loops are formed of copper wire of the same cross - sectional area. Loops 1
ID: 1448052 • Letter: F
Question
Five loops are formed of copper wire of the same cross - sectional area. Loops 1-4 are identical; loop 5 has the same height as the others but is longer. At the instant shown, all the loops are moving at the same speed in the directions indicated. There is a uniform magnetic field pointing out of the page in Region I; in Region II there is no magnetic field. Ignore any interactions between the loops. 1. Through which loop, if any, is the magnetic flux changing? Explain. 2. For each loop that an induced current, determine whether the induced current is clockwise or counterclockwise around the loop. Clearly indicate your answers on the diagram at right. Expalin how you can use Faraday's law to support your answers.Explanation / Answer
here,
1.
as seen from the figure
the flux is changing in loop 1 , loop 4 and loop 5
2.
for the loops where the change in flux is observed ,
there is also induced current
for loop 1,
as the flux is decreasing
by Lenz's law
the induced magnetic feild must be in the same direction of B
using right hand thumb rule
the induced current is anti clockwise
for loop 4,
as the flux is increasing
by Lenz's law
the induced magnetic feild must be in the opposite direction of B
using right hand thumb rule
the induced current is clockwise
for loop 5,
as the flux is increasing
by Lenz's law
the induced magnetic feild must be in the opposite direction of B
using right hand thumb rule
the induced current is clockwise
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