Question
A 15-volt power supply is used to power a circuit with two resistors in series. The voltage drop across R1 is 5 volts. What is the voltage drop across R2?
10 volts
20 volts
0 volts
5 volts
Answers
R_scott
the total voltage drop across the resistors is equal to the supply voltage
5 + vR2 = 15
5 + vR2 = 15
James
10 volts
ruh roh
Imagine not knowing how to do basic math