Question

Figure below shows a portion of an electric circuit with the currents in amperes and their directions. The magnitude and direction of the current in the portion $PQ$ is

• A. zero
• B. 3 A from P to Q
• C. 4 A from Q to P
• D. 6 A from Q to P

Answer 1

Answer: (D)

Using Kirchhoff's junction rule, directions and magnitudes of currents are as,

Clearly, current in the portion $PQ$ is from $Q$ to $P$ is $6A$.