An ac voltmeter is to be used to measure the rms voltage across the 15kOhm resistor in the circuit shown in Figure 7. If the voltmeter uses half-wave rectification and a 100µA of D'Arsonval meter movement, if it is set on its 10V range, and if Rm-1.5k, what reading will be obtained. Given V=20Vrms, R¹=25kOhm, R²= 15kOhm