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

Subtopic:  Combination of Resistors |
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What is the equivalent resistance between A and B 

(1) 23R

(2) 32R

(3) R2

(4) 2 R

Subtopic:  Combination of Resistors |
 77%
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What is the equivalent resistance of the circuit​​​​​?

           

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

Subtopic:  Combination of Resistors |
 71%
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The equivalent resistance of the circuit shown in the figure is:  
    
1. \(8~\Omega \)
2. \(6~\Omega \)
3. \(5~\Omega \)
4. \(4~\Omega \)

Subtopic:  Combination of Resistors |
 92%
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PMT - 1999
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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

Subtopic:  Combination of Resistors |
 92%
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AIIMS - 1999
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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

Subtopic:  Kirchoff's Voltage Law |
 89%
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PMT - 2000
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The potential drop across the 3Ω resistor is 

(1) 1 V

(2) 1.5 V

(3) 2 V

(4) 3 V

Subtopic:  Combination of Resistors |
 68%
From NCERT
PMT - 2000
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If each resistance in the figure is \(9~\Omega\), then the reading of the ammeter is:


1. \(5~\text{A}\)
2. \(8~\text{A}\)
3. \(2~\text{A}\)
4. \(9~\text{A}\)

Subtopic:  Combination of Resistors |
 61%
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PMT - 2000
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Two wires of equal diameters, of resistivities ρ1 and ρ2 and lengths l1 and l2, respectively, are joined in series. The equivalent resistivity of the combination is :

(1) ρ1l1+ρ2l2l1+l2

(2) ρ1l2+ρ2l1l1l2

(3) ρ1l2+ρ2l1l1+l2

(4) ρ1l1ρ2l2l1l2 

Subtopic:  Derivation of Ohm's Law |
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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

Subtopic:  Combination of Resistors |
 88%
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