JEE Main & Advanced
Sample Paper
JEE Main Sample Paper-4
question_answer
In the circuit shown the current in \[3\Omega \]resistor is
A) 1A
B)\[\frac{30}{7}A\]
C)\[\frac{5}{7}A\]
D) Information insufficient
Correct Answer:
C
Solution :
Apply KCL at junction having potential V \[\frac{V-10}{2}+\frac{V-0}{6}+\frac{V-0}{2}=0\]\[\Rightarrow \]\[V=30/7volt\] Both\[3\Omega \]resistors are connected in series, so required current \[i=\frac{V-0}{6}=\frac{5}{7}amp\]