A conducting rod with a length ℓ = 25 cm is placed on a U-shaped metal wire that is connected to a lightbulb having a resistance of 8.0 Ω as shown in the figure. The wire and the rod are in the plane of the page. A constant uniform magnetic field of strength 0.40 T is applied perpendicular to and into the paper. An external applied force moves the rod to the right with a constant speed of 6.0 m/s. What are the magnitude and direction of the induced current in the circuit?
A)17 mA clockwise
B)17 mA counterclockwise
C)75 mA counterclockwise
D)75 mA clockwise
E)52 mA clockwise

Question

A conducting rod with a length ℓ = 25 cm is placed on a U-shaped metal wire that is connected to a lightbulb having a resistance of 8.0 Ω as shown in the figure. The wire and the rod are in the plane of the page. A constant uniform magnetic field of strength 0.40 T is applied perpendicular to and into the paper. An external applied force moves the rod to the right with a constant speed of 6.0 m/s. What are the magnitude and direction of the induced current in the circuit? 
A)17 mA clockwise 
B)17 mA counterclockwise 
C)75 mA counterclockwise 
D)75 mA clockwise 
E)52 mA clockwise

Quizplus · Accepted Answer

The Answer of A conducting rod with a length ℓ = 25 cm is placed on a U-shaped metal wire that is connected to a lightbulb having a resistance of 8.0 Ω as shown in the figure. The wire and the rod are in the plane of the page. A constant uniform magnetic field of strength 0.40 T is applied perpendicular to and into the paper. An external applied force moves the rod to the right with a constant speed of 6.0 m/s. What are the magnitude and direction of the induced current in the circuit? 
A)17 mA clockwise 
B)17 mA counterclockwise 
C)75 mA counterclockwise 
D)75 mA clockwise 
E)52 mA clockwise

A Conducting Rod with a Length ℓ = 25 Cm