Question

Five conductors are meeting at a point $x$ as shown in the figure. What is the value of current in fifth conductor?

• A. $3A$ away from $x$
• B. $1A$ away from $x$
• C. $4A$ away from $x$
• D. $1A$ towards $x$

Answer 1

Answer: (B)

According to Kirchhoff's first law,
$(5A)+(4A)+(-3A)+(-5A)+I=0\Rightarrow I=-1A$