1. The current flowing in a circuit containing four resistors connected in series is I = 1.0 A. The potential drops across the first, second and third resistors are, respectively: V = 5 V, V = 8 V and...

Extracted text: 1. The current flowing in a circuit containing four resistors connected in series is I = 1.0 A. The potential drops across the first, second and third resistors are, respectively: V = 5 V, V = 8 V and V=7 V. The equivalent resistance of the circuit is R = 30 2. a. Find the resistance of the fourth resistor. b. Find the voltage across this resistor. c. The voltage drops across the resistors. R1 R R4 R3