WBJEE · Physics · Electromagnetic Induction
As shown in the figure, a rectangular loop of a conducting wire is moving away with a constant velocity \(v\) in a perpendiculat direction from a very long straight conductor carrying a steady current \(l\). When the
breadth of the rectangular loop is very small compared to its distance from the straight conductor, how does the emf. \(E\) induced in the loop vary with time \(t ?\)
- A \(E \propto \frac{1}{t^{2}}\)
- B \(E \propto \frac{1}{t}\)
- C \(E \alpha-\ln (t)\)
- D \(E \propto \frac{1}{t^{3}}\)
Answer & Solution
Correct Answer
(A) \(E \propto \frac{1}{t^{2}}\)
Step-by-step Solution
Detailed explanation
\(\therefore\) Motional emf in the loop.…
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