In the given figure, the potential difference between A and B is:

1.	0	2.	5 volt
3.	10 volt	4.	15 volt

If each resistance in the figure is 9 Ω, then the reading of the ammeter is:

1. 5 A

2. 8 A

3. 2 A

4. 9 A

Four resistances of 100 Ω each are connected in the form of square. Then, the effective resistance along the diagonal points is :

(1) 200 Ω

(2) 400 Ω

(3) 100 Ω

(4) 150 Ω

Effective resistance between A and B is :

(1) 15 Ω

(2) 5 Ω

(3) $\frac{5}{2}\Omega$

(4) 20 Ω

In the circuit, the potential difference across PQ will be nearest to 

(1) 9.6 V

(2) 6.6 V

(3) 4.8 V

(4) 3.2 V

Equivalent resistance across terminals A and B will be:

1. 1 Ω

2. 2 Ω

3. 3 Ω

4. 4 Ω

The potential difference between points A and B is:

         
1. 207 V
2. 407 V
3. 107 V
4. 0

In the circuit shown in the adjoining figure, the current between B and D is zero, the unknown resistance is of 

(1) 4 Ω

(2) 2 Ω

(3) 3 Ω

(4) em.f. of a cell is required to find the value of X

In the circuit shown in the figure, the current flowing in 2 Ω resistance 

(1) 1.4 A

(2) 1.2 A

(3) 0.4 A

(4) 1.0 A

The effective resistance between points A and B is 

(1) 10 Ω

(2) 20 Ω

(3) 40 Ω

(4) None of the above three values