Three condensers each of capacitance 2F are put in series. The resultant capacitance is 

(1) 6F

(2) 32F

(3) 23F

(4) 5F

Subtopic:  Combination of Capacitors |
 89%
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Four condensers are joined as shown in the adjoining figure. The capacity of each is 8 μF. The equivalent capacity between the points A and B will be

(1) 32 μF

(2) 2 μF

(3) 8 μF

(4) 16 μF

Subtopic:  Combination of Capacitors |
 75%
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The capacities and connection of five capacitors are shown in the adjoining figure. The potential difference between the points A and B is 60 volts. Then the equivalent capacity between A and B and the charge on 5 μF capacitance will be respectively

(1) 44 μF; 300 μC

(2) 16 μF; 150 μC

(3) 15 μF; 200 μC

(4) 4 μF; 50 μC

Subtopic:  Combination of Capacitors |
 74%
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Four plates of the same area of cross-section are joined as shown in the figure. The distance between each plate is d. The equivalent capacity across A and B will be

(1) 2ε0Ad

(2) 3ε0Ad

(3) 3ε0A2d

(4) ε0Ad

Subtopic:  Combination of Capacitors |
 73%
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In the adjoining figure, four capacitors are shown with their respective capacities and the P.D. applied. The charge and the P.D. across the 4 μF capacitor will be

(1) 600 μC; 150 volts

(2) 300 μC; 75 volts

(3) 800 μC; 200 volts

(4) 580 μC; 145 volts

Subtopic:  Combination of Capacitors |
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In the connections shown in the adjoining figure, the equivalent capacity between \(A\) and \(B\) will be:

      

1. \(10.8~\mu\text{F}\)
2. \(69~\mu\text{F}\)
3. \(15~\mu\text{F}\)
4. \(10~\mu\text{F}\)

Subtopic:  Combination of Capacitors |
 73%
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2 μF capacitance has potential difference across its two terminals 200 volts. It is disconnected with battery and then another uncharged capacitance is connected in parallel to it, then P.D. becomes 20 volts. Then the capacity of another capacitance will be 

(1) 2 μF

(2) 4 μF

(3) 18 μF

(4) 10 μF

Subtopic:  Capacitance |
 72%
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The resultant capacitance across 300 v battery in the figure shown is equal to

(1) 1 μF

(2) 31120 μF

(3) 2 μF

(4) 12031μF

Subtopic:  Combination of Capacitors |
 83%
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A capacitor is charged by a battery. The battery is removed and another identical uncharged capacitor is connected in parallel. The total electrostatic energy of the resulting system 

1. increases by a factor of 4

2.decreases by a factor of 2

3. remain the same 

4. increases by a factor of 2

Subtopic:  Energy stored in Capacitor |
 64%
From NCERT
NEET - 2017
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The diagrams below show regions of equipotentials.

  

A positive charge is moved from \(\mathrm A\) to \(\mathrm B\) in each diagram. Then:
1. the maximum work is required to move \(q\) in figure(iii).
2. in all four cases, the work done is the same.
3. the minimum work is required to move \(q\) in the figure(i).
4. the maximum work is required to move \(q\) in figure(ii).
Subtopic:  Equipotential Surfaces |
 90%
From NCERT
NEET - 2017
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