Potential difference between the points P and Q in the electric circuit shown is 

(1) 4.5 V

(2) 1.2 V

(3) 2.4 V

(4) 2.88 V

Concept Questions :-

Combination of resistors
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The current between B and D in the given figure is 

(1) 1 amp

(2) 2 amp

(3) Zero

(4) 0.5 amp

Concept Questions :-

Combination of resistors
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In the given figure, equivalent resistance between A and B will be

(1) 143  Ω

(2) 314  Ω

(3) 914  Ω

(4) 149  Ω

Concept Questions :-

Combination of resistors
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In a typical Wheatstone network, the resistances in cyclic order are A = 10 Ω, B = 5 Ω, C = 4 Ω and D = 4 Ω for the bridge to be balanced 

(1) 10 Ω should be connected in parallel with A

(2) 10 Ω should be connected in series with A

(3) 5 Ω should be connected in series with B

(4) 5 Ω should be connected in parallel with B

Concept Questions :-

Combination of resistors
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In the circuit shown in figure, the current drawn from the battery is 4A. If 10 Ω resistor is replaced by 20 Ω resistor, then current drawn from the circuit will be 

(1) 1 A

(2) 2 A

(3) 3 A

(4) 0 A

Concept Questions :-

Combination of resistors
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The equivalent resistance between P and Q in the given figure, is

(1) 50 Ω

(2) 40 Ω

(3) 30 Ω

(4) 20 Ω

Concept Questions :-

Combination of resistors
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If each of the resistance of the network shown in the figure is R, the equivalent resistance between A and B is 

(1) 5 R

(2) 3 R

(3) R

(4) R/2

Concept Questions :-

Combination of resistors
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The equivalent resistance of the following diagram A and B is 

(1) 23Ω

(2) 9 Ω

(3) 6 Ω

(4) None of these

Concept Questions :-

Combination of resistors
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Thirteen resistances each of resistance R ohm are connected in the circuit as shown in the figure below. The effective resistance between A and B is 

(1) 2R Ω

(2) 4R3  Ω

(3) 2R3  Ω

(4) R Ω

Concept Questions :-

Combination of resistors
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For what value of unknown resistance X, the potential difference between B and D will be zero in the circuit shown in the figure 

(1) 4 Ω

(2) 6 Ω

(3) 2 Ω

(4) 5 Ω

Concept Questions :-

Combination of resistors
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Difficulty Level: