If an input current 3 A flows through the circuit shown above. What is the value of the current flowing through the `4Omega` resistor ?

Options

A. `1.6A`
B. `0.8A`
C. `0.75A`
D. `0.4A`

Answer

D

Explanation

Equivalent resistance `(1)/(R)=(1)/(2)+(1)/(8)+(1)/(4)+(1)/(1)`
`:." "R=(8)/(15)Omega`
And potential difference of each brancd,
`V=iR=(8)/(15)xx3=(8)/(5)"volt"`
`:.` Current through `4pi` resistance
`i=(V)/(R)=(5)/(4)=(8)/(5xx4)=0.4A`