A conducting rod whose length is 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 out of the paper. An external applied force moves the rod to the left with a constant speed of 12 m/s. What are the magnitude and direction of the induced current in the circuit?
A)150 mA clockwise
B)150 mA counterclockwise
C)34 mA counterclockwise
D)34 mA clockwise
E)100 mA clockwise

Question

A conducting rod whose length is 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 out of the paper. An external applied force moves the rod to the left with a constant speed of 12 m/s. What are the magnitude and direction of the induced current in the circuit? 
A)150 mA clockwise 
B)150 mA counterclockwise 
C)34 mA counterclockwise 
D)34 mA clockwise 
E)100 mA clockwise

Quizplus · Accepted Answer

The Answer of A conducting rod whose length is 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 out of the paper. An external applied force moves the rod to the left with a constant speed of 12 m/s. What are the magnitude and direction of the induced current in the circuit? 
A)150 mA clockwise 
B)150 mA counterclockwise 
C)34 mA counterclockwise 
D)34 mA clockwise 
E)100 mA clockwise

A Conducting Rod Whose Length Is ℓ = 25 Cm