n equal resistors are first connected in series and then connected in parallel. What is the ratio of the maximum to the minimum resistance 

1. n

2. $\frac{1}{n^2}$

3. n²

4. $\frac{1}{n}$

In the figure, current through the 3 Ω resistor is 0.8 ampere, then potential drop through 4 Ω resistor is 

1. 9.6 V

2. 2.6 V

3. 4.8 V

4. 1.2 V

What is the equivalent resistance between A and B in the figure below if R = 3 Ω 

1. 9 Ω

2. 12 Ω

3. 15 Ω

4. None of these

What is the equivalent resistance between A and B 

1. $\frac{2}{3}R$

2. $\frac{3}{2}R$

3. $\frac{R}{2}$

4. 2 R

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

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

In the given figure, the equivalent resistance between the points A and B is :

1. 8 Ω

2. 6 Ω

3. 4 Ω

4. 2 Ω

A battery of emf 10 V and internal resistance 3 Ω is connected to a resistor as shown in the figure. If the current in the circuit is 0.5 A. then the resistance of the resistor will be 

1. 19 Ω

2. 17 Ω

3. 10 Ω

4. 12 Ω

The potential drop across the 3Ω resistor is 

1. 1 V

2. 1.5 V

3. 2 V

4. 3 V