Question
In the given circuit, the current flowing through the resistance $20 \Omega$ is $0.3 \mathrm{~A}$, while the ammeter reads $0.9 \mathrm{~A}$. The value of $\mathrm{R}_1$ is _________ $\Omega$.
Correct Answer
30
In the given circuit, the current flowing through the resistance $20 \Omega$ is $0.3 \mathrm{~A}$, while the ammeter reads $0.9 \mathrm{~A}$. The value of $\mathrm{R}_1$ is _________ $\Omega$.