Two wires of the same dimensions but resistivities ρ1 and ρ2 are connected in series. The equivalent resistivity of the combination is 

(1) ρ1 + ρ2

(2) ρ1+ρ22

(3) ρ1ρ2

(4) 2(ρ1+ρ2)

Subtopic:  Combination of Resistors |
 63%
From NCERT
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A 3 volt battery with negligible internal resistance is connected in a circuit as shown in the figure. The current I, in the circuit will be 

(1) 1/3 A

(2) 1 A

(3) 1.5 A

(4) 2 A

Subtopic:  Combination of Resistors |
 88%
From NCERT
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Find the equivalent resistance between the points a and b 

(1) 2 Ω

(2) 4 Ω

(3) 8 Ω

(4) 16 Ω

Subtopic:  Combination of Resistors | Wheatstone Bridge |
 82%
From NCERT
PMT - 2004
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The potential difference between points A and B is:

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

Subtopic:  Wheatstone Bridge |
 74%
From NCERT
PMT - 2004
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In the circuit shown below, The reading of the voltmeter V is 

(1) 12 V

(2) 8 V

(3) 20 V

(4) 16 V

Subtopic:  Kirchoff's Voltage Law |
 60%
From NCERT
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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

Subtopic:  Combination of Resistors | Wheatstone Bridge |
 67%
From NCERT
PMT - 1989
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In the figure given the value of X resistance will be, when the p.d. between B and D is zero 

(1) 4 ohm

(2) 6 ohm

(3) 8 ohm

(4) 9 ohm

Subtopic:  Wheatstone Bridge |
 81%
From NCERT
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Five resistors of given values are connected together as shown in the figure. The current in the arm BD will be 

(1) Half the current in the arm ABC

(2) Zero

(3) Twice the current in the arm ABC

(4) Four times the current in the arm ABC

Subtopic:  Wheatstone Bridge |
 93%
From NCERT
PMT - 1995
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In the network shown in the figure, each of the resistance is equal to 2 Ω. The resistance between the points A and B is 

(1) 1 Ω

(2) 4 Ω

(3) 3 Ω

(4) 2 Ω

Subtopic:  Wheatstone Bridge |
 79%
From NCERT
PMT - 1995
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In the arrangement of resistances shown below, the effective resistance between points A and B is

(1) 20 Ω

(2) 30 Ω

(3) 90 Ω

(4) 110 Ω

Subtopic:  Wheatstone Bridge |
 76%
From NCERT
PMT - 1997
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