Answer:
groups
Explanation:
vertical sections are called groups
Answer:
Induced emf in the rod is, 
Explanation:
Given that,
Length of the rod, L = 22 cm = 0.22 m
Angle with x axis is 37.9 degrees with the positive x-axis and an angle of 52.1 degrees with the positive y-axis.


Velocity of the rod, v = 6.8i m/s
Magnetic field, 
The formula for the emf induced in the rod is given by :


So, the magnitude of the emf induced in the rod is 0.08262 volts. Hence, this is the required solution.
Answer:
Maximum charge will be 
Explanation:
We have given force ion the moving charge 
Maximum speed of the moving charge v = 30 m /sec
Magnetic field 
We have to fond the charge
Force on moving charge is given by

So 

Maximum charge will be 