Questions
Work done on an electron moving in a solenoid along its axis is equal to :
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a
Zero
b
evB
c
ilB
d
None of these
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Correct option is A
Magnetic field in the solenoid is along its axis,So, force on electron when it moves along the axis is ZeroSince qvBsinθ=0since θ=0Similar Questions
In the network shown, when switch S is open balancing length AN1 = 60 cm and when the switch S is closed, balancing length AN2 = 50 cm. then the value of r is
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