A rectangular metal loop with 0.047 Ω resistance is placed next to one wire of the RC circuit shown in the figure below. The capacitor is charged to 20 V with the polarity shown, then the switch is closed at t = 0 s.a) What is the current in the loop at t = 4.9 μs? Assume that only the circuit wire next to the loop is close enough to produce a significant magnetic field. (Use 4π ✕ 10−7 T m/A for the permeability constant μ0.)