A conducting rod is free to slide horizontally on frictionless rails separated by 2.0 m. At a particular time, the rod is sliding at 3.0 m/s to the right, as shown. There is a uniform magnetic field of magnitude 0.66 mT directed into the page. If the resistance R is 220 mΩ, what is the current in the circuit at this time?
A) 18 mA
B) 9.0 mA
C) 87 μA
D) 3.0 μA
E) 4.5 mA

Question

A conducting rod is free to slide horizontally on frictionless rails separated by 2.0 m. At a particular time, the rod is sliding at 3.0 m/s to the right, as shown. There is a uniform magnetic field of magnitude 0.66 mT directed into the page. If the resistance R is 220 mΩ, what is the current in the circuit at this time? 
A) 18 mA 
B) 9.0 mA 
C) 87 μA 
D) 3.0 μA 
E) 4.5 mA

Quizplus · Accepted Answer

The Answer of A conducting rod is free to slide horizontally on frictionless rails separated by 2.0 m. At a particular time, the rod is sliding at 3.0 m/s to the right, as shown. There is a uniform magnetic field of magnitude 0.66 mT directed into the page. If the resistance R is 220 mΩ, what is the current in the circuit at this time? 
A) 18 mA 
B) 9.0 mA 
C) 87 μA 
D) 3.0 μA 
E) 4.5 mA

A Conducting Rod Is Free to Slide Horizontally on Frictionless