MHT CET · Physics · Current Electricity
The current drawn from the battery in the given network is (Internal resistance of the battery is negligible)
- A 1.2 A
- B 4 A
- C 2.4 A
- D 4.8 A
Answer & Solution
Correct Answer
(C) 2.4 A
Step-by-step Solution
Detailed explanation
The given circuit can be drawn as:
From the figure, we can see that this is a balanced Wheatstone bridge.
\(\begin{array}{ll}
\therefore & \frac{1}{R}=\frac{1}{10}+\frac{1}{10}=\frac{2}{10}=\frac{1}{5} \\
\therefore & R=5 \Omega \\
\therefore & I=\frac{12}{5}=2.4 \mathrm{~A}
\end{array}\)
From the figure, we can see that this is a balanced Wheatstone bridge.
\(\begin{array}{ll}
\therefore & \frac{1}{R}=\frac{1}{10}+\frac{1}{10}=\frac{2}{10}=\frac{1}{5} \\
\therefore & R=5 \Omega \\
\therefore & I=\frac{12}{5}=2.4 \mathrm{~A}
\end{array}\)
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