Answer:
3 volts
Explanation:
It is given that,
Magnetic field, B = 0.8 T
Length of a conducting rod, l = 50 cm = 0.5 m
Velocity of the conducting rod, v = 7.5 m/s
We need to find the magnitude of the emf induced in the rod when it is moving toward the right. When a rod is moved in a magnetic field, an emf is induced in it and it is given by :
[tex]\epsilon=Blv[/tex]
Putting all the values,
[tex]\epsilon=0.8\times 0.5\times 7.5\\\\\epsilon=3\ V[/tex]
So, the magnitude of the emf induced in the rod is 3 volts.