In the following figure(Figure 1) switch, S1 is closed while switch S2 is kept open. The inductance is L = 0.380 H, the resistance is R = 61.0 Ω, and the emf of the battery is 18.0 V. At time t after S1 is closed, the current in the circuit is increasing at a rate of di/dt = 7.20 A/s.
At this instant what is Vab, the voltage across the resistor?
Express your answer to three significant figures and include the appropriate units.