The drawing depicts a copper loop lying flat on a table (not shown) and connecte

Question

The drawing depicts a copper loop lying flat on a table (not shown) and connected to a battery via a closed switch. The current I in the loop generates the magnetic field lines shown in the drawing. The switch is then opened and the current goes to zero. There are also two smaller conducting loops A and B lying flat on the table, but not connected to batteries.

Determine the direction of the induced current in loop A and loop B. Specify the direction of each induced current to be clockwise or counterclockwise when viewed from above the table.

Provide a reason for the answer for loop A.

Provide a reason for the answer for loop B.

Explanation / Answer

In A:
ANTI CLOCKWISE

Magnetic field produced by the current will try to decrease the effect of magnetic field dut to main coil.So magnetic field produced should be directed up and hence the current should be counter clockwise

InB:
CLOCKWISE

Magnetic field produced by the current will try to decrease the effect of magnetic field dut to main coil.So magnetic field produced should be directed down and hence the current should be clockwise

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