As shown in the figure, a straight wire carries a current $I$ into the page. The wire passes through the center of a toroidal coil. If the current $I$ is quickly reduced to zero, the direction of the induced current through the resistor $R$ is

A) from $b$ to $a$.
B) from $a$ to $b$.
C) No current is induced.

Question

As shown in the figure, a straight wire carries a current

I

into the page. The wire passes through the center of a toroidal coil. If the current

I

is quickly reduced to zero, the direction of the induced current through the resistor

R

is

As shown in the figure, a straight wire carries a current I into the page. The wire passes through the center of a toroidal coil. If the current I is quickly reduced to zero, the direction of the induced current through the resistor R is A) from b to a . B) from a to b . C) No current is induced.

A) from $b$ to $a$. 
B) from $a$ to $b$. 
C) No current is induced.

Quizplus · Accepted Answer

The Answer of As shown in the figure, a straight wire carries a current $I$ into the page. The wire passes through the center of a toroidal coil. If the current $I$ is quickly reduced to zero, the direction of the induced current through the resistor $R$ is

A) from $b$ to $a$. 
B) from $a$ to $b$. 
C) No current is induced.

As Shown in the Figure, a Straight Wire Carries a Current