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Question: Answered & Verified by Expert
In the given circuit, the current in $8 \Omega$ resistance is $1.5 \mathrm{~A}$. The total current (I) flowing in the circuit is

PhysicsCurrent ElectricityMHT CETMHT CET 2021 (24 Sep Shift 1)
Options:
  • A 5 A
  • B 4.5 A
  • C 3 A
  • D 5.5 A
Solution:
2285 Upvotes Verified Answer
The correct answer is: 5.5 A
$$
\mathrm{I}_1=1.5 \mathrm{~A}, \mathrm{R}_1=8 \Omega
$$
P.D. across $\mathrm{R}_1=1.5 \times 8=12 \mathrm{~V}$
$R_2=3 \Omega ; R_2$ is in parallel with $R_1$ and hence P.D. across it is also $12 \mathrm{~V}$.
$$
\therefore \mathrm{I}_2=\frac{12}{3}=4 \mathrm{~A}
$$
Total current $\mathrm{I}=\mathrm{I}_1+\mathrm{I}_2=1.5+4=5.5 \mathrm{~A}$

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