If a 20 and a 40 ohm resistor are wired in series to the same source, the current through the 40 ohm resistor will be:
A) 0.33
B) 0.5
C) 1.0
D) 2.0
E) 3.0 amps

Question

Quizplus · Accepted Answer

When resistors are wired in series, the current through each resistor is the same. In this case, the current through the 40 ohm resistor will be the same as the current through the 20 ohm resistor. The total resistance of the circuit is 20 + 40 = 60 ohms. The voltage of the source is not given, so we cannot calculate the exact current. However, we can say that the current will be less than 1 amp, since the total resistance is 60 ohms and the voltage of the source is less than 60 volts.

If a 20 and a 40 Ohm Resistor Are Wired