Figure shows three regions of magnetic field, each of area A, and in each region…
Physics · JEE Main · NTA Exams — Electromagnetic Induction and Alternating Currents
Figure shows three regions of magnetic field, each of area A, and in each region magnitude of magnetic field decreases at a constant rate a. If \(\overrightarrow{\mathrm{E}}\) is induced electric field then value of line integral \(\oint \overrightarrow{\mathrm{E}} . \mathrm{d} \overrightarrow{\mathrm{r}}\) along the given loop is equal to–
- aA
- –aA
- 3aA
- –3aA
Answer
(B) –aA
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