Kirchhoff's Second Law - Practice Questions & MCQ

The Kirchhoff’s first law $\left(\sum i=0\right)$ and second law $\left(\sum i R=\sum E\right)$ where the symbols have their usual meanings, are respectively based on

For the network shown below, the value of $V_B-V_A$ is __________$V$.

The given potentiometer has its wire of resistance $10 \Omega$. When the sliding contact is in the middle of the potentiometer wire, the potential drop across the $2 \Omega$ resistor is:

The magnitude and direction of the current in the circuit shown will be:

The value of R is 

Current flowing through the circuit is 

If the current through the circuit is 2A. Find E.

The electric potential at O is