Kirchhoff's laws and their applications — NEET & JEE Questions

Question 1 · difficulty L1 · recall

Kirchhoff's junction rule is based on conservation of

• A. charge
• B. energy
• C. momentum
• D. mass only

Question 2 · difficulty L2 · understanding

The net current flowing in the given circuit is __________ A.

Question 3 · difficulty L2 · understanding

Two cells are connected in opposition as shown. Cell $$\mathrm{E}_1$$ is of $$8 \mathrm{~V}$$ emf and $$2 \Omega$$ internal resistance; the cell $$\mathrm{E}_2$$ is of $$2 \mathrm{~V}$$ emf and $$4 \Omega$$ internal resistance. The terminal potential difference of cell $$\mathrm{E}_2$$ is __________ V.

Question 4 · difficulty L2 · understanding

In the given circuit, the current flowing through the resistance $$20 \Omega$$ is $$0.3 \mathrm{~A}$$, while the ammeter reads $$0.9 \mathrm{~A}$$. The value of $$\mathrm{R}_1$$ is _________ $$\Omega$$.

Question 5 · difficulty L2 · understanding

In the given circuit, the value of $$\left| {{{{\mathrm{I_1}} + {\mathrm{I_3}}} \over {{\mathrm{I_2}}}}} \right|$$ is _____________

Question 6 · difficulty L2 · understanding

In the given figure, the value of V o will be _____________ V.

Question 7 · difficulty L2 · understanding

For the network shown below, the value of V B $$-$$ V A is ____________ V.

Question 8 · difficulty L2 · understanding

The reading of the ammeter $(A)$ in steady state in the following circuit (assuming negligible internal resistance of the ammeter) is $\_\_\_\_$ A.

• A. 1/2
• B. 1
• C. 2
• D. 0

Question 9 · difficulty L2 · understanding

In the given circuit, the current in resistance R$$_3$$ is :

• A. 2 A
• B. 1.5 A
• C. 1 A
• D. 2.5 A

Question 10 · difficulty L3 · understanding

The current flowing through the $$1 \Omega$$ resistor is $$\frac{n}{10}$$ A. The value of $$n$$ is _______.