Figure 6.7 shows an electrical circuit scheme. An ammeter connected to this circuit shows
1.5 A, voltmeter — 6 V; R1 = 4 Ω, R3 = 8 Ω. Calculate the total resistance of the circuit. (R2 is not given)​

Figure 67 shows an electrical circuit scheme An ammeter connected to this circuit shows15 A voltmeter 6 V R1 4 Ω R3 8 Ω Calculate the total resistance of the ci class=