Question
Figure shows a conducting loop being pulled out of a magnetic field with a speed u. Which of the four plots shown in figure may represent the power delivered by the pulling agent as a function of the speed u?
✓
Answer
Explanation:
$\in=\text{Bvl}$
Power $=\frac{\text{v}^2}{\text{R}}=\frac{\in^2}{\text{R}}=\frac{\text{B}^2\text{v}^2\text{l}^2}{\text{R}}$
P → Power
v → velocity
B → Magnetic field
Here, $\text{P}\times\text{v}^2$
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