As shown in the figure, a metal bar is in contact with a pair of parallel rails and is in motion with an upward velocity of magnitude $v$. A uniform magnetic field is present, directed downward as shown. 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 metal bar is in contact with a pair of parallel rails and is in motion with an upward velocity of magnitude

v

. A uniform magnetic field is present, directed downward as shown. The direction of the induced current through the resistor

R

is

As shown in the figure, a metal bar is in contact with a pair of parallel rails and is in motion with an upward velocity of magnitude v . A uniform magnetic field is present, directed downward as shown. 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 metal bar is in contact with a pair of parallel rails and is in motion with an upward velocity of magnitude $v$. A uniform magnetic field is present, directed downward as shown. 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 Metal Bar Is in Contact