Here is a circuit that contains a Current Controlled Voltage Source (CCVS). The gain of the CCVS can be changed using the scrollbar.
When the gain of the CCVS is equal to 4 V/A this is the circuit considered in problem P2.7-1 of Introduction to Electric Circuits, 7e by R.C. Dorf and J.A. Svoboda. In problem P2.7-1 the gain of the CCVS is denoted by the symbol r. Then
where r is the gain of the dependent source. Notice that the units of r are V/A. The current Ia, in Amps, and voltage Vb, in Volts, are measured using the ammeter and voltmeter. Thus the gain of the dependent source can be determined from the meter readings.