The flexible loop in the figure below has a radius of 11.0 cm and is in a magnet

Question

The flexible loop in the figure below has a radius of 11.0 cm and is in a magnetic field of magnitude 0.120 T. The loop is grasped at points A and B and stretched until its area is nearly zero. If it takes 0.250 s to close the loop, what is the magnitude of the average induced emf in it during this time interval?
=____mV

The flexible loop in the figure below has a radius of 11.0 cm and is in a magnetic field of magnitude 0.120 T. The loop is grasped at points A and B and stretched until its area is nearly zero. If it takes 0.250 s to close the loop, what is the magnitude of the average induced emf in it during this time interval? =____mV

Explanation / Answer

Here ,

Induced emf V = rate of change in flux

V = 0.12 *(pi*0.11^2 - 0)/0.25

V = 0.01824 V

V = 18.24 mV

the induced EMF is 18.24 mV

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