The equivalent resistance between $$A$$ and $$B$$ for the mesh shown in the figure is:

 1 $$7.2$$  $$\Omega$$ 2 $$16$$  $$\Omega$$ 3 $$30$$  $$\Omega$$ 4 $$4.8$$  $$\Omega$$
Subtopic:  Combination of Resistors |
87%
From NCERT
NEET - 2020
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

A potential divider is used to give outputs of $$2~\text{V}$$ and $$3~\text{V}$$ from a $$5~\text{V}$$ source, as shown in the figure.

Which combination of resistances, from the ones given below, $$R_1, R_2, ~\text{and}~R_3$$ give the correct voltages?
 1 $${R}_1=1~\text{k} \Omega, {R}_2=1 ~\text{k} \Omega, {R}_3=2 ~\text{k} \Omega$$ 2 $${R}_1=2 ~\text{k} \Omega, {R}_2=1~\text{k} \Omega, {R}_3=2~\text{k} \Omega$$ 3 $${R}_1=1 ~\text{k} \Omega, {R}_2=2~ \text{k} \Omega, {R}_3=2~ \text{k} \Omega$$ 4 $${R}_1=3~\text{k} \Omega, {R}_2=2~\text{k} \Omega, {R}_3=2~ \text{k} \Omega$$
Subtopic:  Combination of Resistors |
79%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

In the circuit shown in the figure, the effective resistance between $$A$$ and $$B$$ is:

1. $$2~\Omega$$
2. $$4~\Omega$$
3. $$6~\Omega$$
4. $$8~\Omega$$

Subtopic:  Combination of Resistors |
79%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The effective resistance between points $$P$$ and $$Q$$ of the electrical circuit shown in the figure is:

1. $$\frac{2 R r}{\left(R + r \right)}$$
2. $$\frac{8R\left(R + r\right)}{\left( 3 R + r\right)}$$
3. $$2r+4R$$
4. $$\frac{5R}{2}+2r$$

Subtopic:  Combination of Resistors |
76%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Equivalent resistance across terminals $$A$$ and $$B$$ will be:

1. $$1~\Omega$$
2. $$2~\Omega$$
3. $$3~\Omega$$
4. $$4~\Omega$$

Subtopic:  Combination of Resistors |
71%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

What is the reading of the voltmeter of resistance $$1200~\Omega$$ connected in the following circuit diagram?

1. $$2.5$$ V

2. $$5.0$$ V

3. $$7.5$$ V

4. $$40$$ V

Subtopic:  Combination of Resistors |
67%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

In the circuit shown, the value of each of the resistances is $$r$$. The equivalent resistance of the circuit between terminals $$A$$ and $$B$$ will be:

1. $$\frac{4r}{3}$$
2. $$\frac{3r}{2}$$
3. $$\frac{r}{3}$$
4. $$\frac{8r}{7}$$

Subtopic:  Combination of Resistors |
69%
From NCERT
Hints

What is the equivalent resistance of the circuit​​​​​?

1. $$6~\Omega$$
2. $$7~\Omega$$
3. $$8~\Omega$$
4. $$9~\Omega$$

Subtopic:  Combination of Resistors |
70%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The total current supplied to the circuit by the battery is:

1. $$1~\text{A}$$
2. $$2~\text{A}$$
3. $$4~\text{A}$$
4. $$6~\text{A}$$

Subtopic:  Combination of Resistors |
65%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

A wire of resistance $$12~ \Omega \text{m}^{-1}$$${}^{}$ is bent to form a complete circle of radius $$10~\text{cm}$$. The resistance between its two diametrically opposite points, $$A$$ and $$B$$ as shown in the figure, is:

1. $$0.6\pi~\Omega$$
2. $$3\pi ~\Omega$$
3. $$61 \pi~ \Omega$$
4. $$6\pi~\Omega$$

Subtopic:  Combination of Resistors |
65%
From NCERT
AIPMT - 2009
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints