-In the figure,a bar is in contact with a pair of parallel rails.A steady,uniform,magnetic field B is present.The bar is in motion with velocity ν.The polarity of the induced emf in terminals X and Y is:
A)X and Y are at the same potential
B)X is positive and Y is negative
C)Y is positive and X is negative

Question

-In the figure,a bar is in contact with a pair of parallel rails.A steady,uniform,magnetic field B is present.The bar is in motion with velocity ν.The polarity of the induced emf in terminals X and Y is:
A)X and Y are at the same potential 
B)X is positive and Y is negative 
C)Y is positive and X is negative

Quizplus · Accepted Answer

The Answer of 
-In the figure,a bar is in contact with a pair of parallel rails.A steady,uniform,magnetic field B is present.The bar is in motion with velocity ν.The polarity of the induced emf in terminals X and Y is:
A)X and Y are at the same potential 
B)X is positive and Y is negative 
C)Y is positive and X is negative

-In the Figure,a Bar Is in Contact with a Pair