A uniform magnetic field B=(6/π)sin(2t) is directed into the page inside a cylindrical region of radius 1 m. A loop of resistance 10 Ω is folded as an equilateral triangle of side 2 m and placed as shown. Find the maximum potential drop across wire AB.

Question

G1 Physics · Accepted Answer

Magnetic flux is Φ=∫B⃗·dA⃗ and induced emf is ε=-dΦ/dt. Apply Lenz’s law for direction and I=ε/R when the circuit is resistive. This gives 2.