1 5. Figure 1 shows an electricity circuit with voltage, V, current, I and resistor, R which are related by VIR. Let V increase at the rate of 1 volt per second, and I decreases at the rate of amp. per second. If t is a time in second, a) What is the value of dV/dt? b) What is the value of dI/dt? c) Find the equation that relates to dR/dt, dV/dt and dI/dt. d) Find the rate of change of R when V-12 volts and I = 2 amp. Is R increasing or decreasing? + V R Figure 1.