Current Electricity Ques 32
- In the circuit shown below, the current in the $1$ $ \Omega$ resistor is
(a) $1.3 $ $ A$, from $P$ to $Q$
(b) $0.13 $ $A$, from $Q$ to $P$
(c) $0 $ $A$
(d) $0.13 $ $A$, from $P$ to $Q$
(2015 Main)
Show Answer
Answer:
Correct Answer: 32.(b)
Solution:
Applying Kirchhoff’s loop law in loops $1$ and $2$ in the directions shown in figure we have
$ \begin{array}{r}32-3\left(i _1+i _2\right)-i _2=0 \quad …….(i)\\32-2 i _1+i _2-3 i _1=0 \quad …….(ii) \end{array} $
Solving Eqs. (i) and (ii) we get,
$ i _2=0.13$ $ A $
Hence, the current in $1$ $ \Omega$ resister is $0.13$ $ A$ from $Q$ to $P$.
BETA
