Here is a circuit that contains a Current Controlled Current Source (CCCS). The gain of the CCCS can be changed using the scrollbar.
When the gain of the CCCS is equal to 4 A/A this is the circuit considered in problem P2.7-3 of Introduction to Electric Circuits, 7e by R.C. Dorf and J.A. Svoboda. In problem P2.7-3 the gain of the CCCS is denoted by the symbol d. Then
where d is the gain of the dependent source. Notice that the units of d are A/A. The currents Ia and Ib, both in Amps, are measured using the ammeters. Thus the gain of the dependent source can be determined from the meter readings.
where R = 3 Ohms and Vs = 24 V. Thus
regardless of the value of the gain of the CCCS.