Two conducting rods form a rectangular loop of sides a=30 cm and b=50 cm in uniform B=5×10⁻³ T perpendicular to the plane. The loop is turned symmetrically through 180°. If R=1 Ω and L=1 H, find Δq/150 in µC.

Question

G1 Physics · Accepted Answer

Use εₗ=-L(dI/dt), U=½LI², and for mutual induction ε₂=-M(dI₁/dt). Applying the stated geometry/circuit condition gives 5.