The voltmeter in the circuit of Figure P 4.3-6 measures a node voltage. The value of that node voltage depends on the value of the resistance R. (a) (b) Determine the value of the resistance R that will cause the voltage measured by the voltmeter to be 4 V. Determine the voltage measured by the voltmeter when R = 1.2kQ2 = 12000 6 ww |12V ww Ri Voltmeter 3 3 ww 2 mA Figure P 4.3-6 8V