Question

If a closed series circuit has a voltage of 12 V and R1 = 4 Ω and R2 = 2 Ω, what is the current running through R1 and R2?

A. The current in R1 is 2 A and the current in R2 is 2 A.
B. The current in R1 is 3 A and the current in R2 is 6 A.
C. The current in R1 is 6 A and the current in R2 is 2 A.
D. The current in R1 is 6 A and the current in R2 is 6 A.

Answer 1

Total resistance=R1+ R2= 6Ω
Voltage=12v
Current =$\frac{voltage}{resistance}$
Current= 2A
In a series circuit, equal current passes through every resistance.
Answer is option A