Moving Charges and Magnetism Test

Result

Moving Charges and Magnetism Test - 7

Score
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Weekly Quiz Competition

Question 1
1 / -0

cyclotron is used to

A
accelerate charged particles or ions to high energies

B
decelerate charged particles or ions to high voltages

C
accelerate charged particles or ions to high voltages

D
accelerate charged particles or ions to low voltages

Solution

Cyclotron is a particle accelerator, which uses electric field to accelerate the charged particle and magnetic field to make it move in a circular path. During acceleration in the electric field, the particle acquires high energies of the order of a few million electron volts.
Question 2
1 / -0

A rectangular current-carrying coil having n turns,area A and a current I flowing, in a uniform magnetic field B experiences a maximum ,torque equal to

A
IAB

B
nIB

C
nIA

D
nIAB

Solution

The torque experienced by a current carrying conductor placed in a magnetic field is given by τ = N B I A sinθ.

This has a maximum value when sin⁡θ = 1; sinθ = 1

So, τ=nBIA