Two circular coils are lying on a table beside one another; the coil on the righ

Question

Two circular coils are lying on a table beside one another; the coil on the right carries no current since it is not connected to a battery. A power supply makes 10[A] current go clockwise around the left coil. At time t=0, we start reducing the power-supply current smoothly (from 10[A]) by 1[A] per second. During the next 10 seconds, the coil on the right will:



?1. carry a decreasing current counterclockwise

?2. carry a decreasing current clockwise

?3. carry an increasing current counterclockwise

?4. carry an increasing current clockwise

?5. carry a constant current counterclockwise

?6. carry a constant current clockwise

Explanation / Answer

intial current in the left side coil is I =10 A is clock wise direction current decreasing rate in the left side coil is dI/dt =1 A/s after 10 seconds the current in the left side coil is = 1A 1. due clock wise current in the left side coil the induced current direction in right side coil will counter clock wise direction 2. current in the left side coil is decreasing, induced current in the right side coil is also decreasing from the above two point Answer: carry a decreasing current counterclockwise is correct

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