Question

For a rectangular loop entering an out-of-page magnetic field, what is the induced current direction and path?

Options

• Clockwise, along \[b\rightarrow c\rightarrow d\rightarrow a\rightarrow b\]

• No current flows while the loop enters the field.

• Anticlockwise, along \[b\rightarrow a\rightarrow c\rightarrow b\]

• Along \[c\rightarrow d\rightarrow a\rightarrow b\rightarrow c\]

Answer 1

Entering the field increases out-of-page flux, so the induced field points into the page. The Right-Hand Thumb Rule gives a clockwise current along \[b\rightarrow c\rightarrow d\rightarrow a\rightarrow b\].