A circular loop of wire with a radius of 4.0 cm is in a

Problem 4

A circular loop of wire with a radius of 4.0 cm is in a uniform magnetic field of magnitude 0.060 T. The plane of the loop is perpendicular to the direction of the magnetic field. In a time interval of 0.50 s, the magnetic field changes to the opposite direction with a magnitude of 0.040 T. What is the magnitude of the average emf induced in the loop? (a) 0.20 V (b) 0.025 V (c) 5.0 mV (d) 1.0 mV (e) 0.20 mV

                                                               Step By Step Solution

Step 1 of 2

Given that ,

                  Radius of circular loop

                  Time interval

                  Change in magnetic field  

 Now average induced emf

Here  ,

where  is the area of the loop,