The graph shows induced current versus time when the magnetic flux through a coil changes. If the coil resistance is 10 Ω, find the total change in magnetic flux in weber.

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.