In the above, a voltage V is applied across the terminals...
In the above, a voltage V is applied across the terminals P and Q. The voltage across the 1 ohm resistor is
A.
V/8
B.
V/4
C.
V/3
D.
V/2
Correct answer is C
Using the voltage- divider method which states that the output voltage is directly proportional to the input voltage and the ratio of R1 and R2, given by:
Va = RaRT×VT
RT = 1+4×44+4
⇒ RT = 3Ω
V1 = 13V