A square loop PQRS having 10 turns, area $3.6 \times 10^{-3} \mathrm{~m}^2$ and resistance $100 \Omega$ is slowly and uniformly being pulled out of a uniform magnetic field of magnitude $\mathrm{B}=0.5 \mathrm{~T}$ as shown. Work done in pulling the loop out of the field in $1.0 \mathrm{~s}$ is ______ $\times 10^{-6} \mathrm{~J}$ .

Question

A square loop PQRS having 10 turns, area

3.6 \times 10^{-3} \mathrm{~m}^2

and resistance

100 \Omega

is slowly and uniformly being pulled out of a uniform magnetic field of magnitude

\mathrm{B}=0.5 \mathrm{~T}

as shown. Work done in pulling the loop out of the field in

1.0 \mathrm{~s}

is ______

\times 10^{-6} \mathrm{~J}

.

A square loop PQRS having 10 turns, area 3.6 × 10^ -3 ~m^2 and resistance 100 is slowly and uniformly being pulled out

Quantrex Academy · Accepted Answer

Correct answer: 0

aligned & =N B v & i=( )/(R)=(N B v)/(R) & F=N(i B)=(N^2 B^2 ^2 v)/(R) aligned aligned & W=F × = N^2 ~B^2 ^3 R ( t ) & A= ^2 & ~W= (10 × 10)(0.5)^2 ×(3.6 × 10^ -3 )^2 100 × 1 & ~W=3.24 × 10^ -6 ~J aligned

A square loop PQRS having 10 turns, area 3.6 × 10^ -3 ~m^2 and...

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