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About internal resistance of a cell, the...

About internal resistance of a cell, the correct statement is that it is

A

Constant for a given time

B

Inifinity

C

Finite and its value decreases with increase of time of use

D

Finite and its value increases with increase of time of use

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The correct Answer is:
4
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Identify the correct statement about cells.

AAKASH INSTITUTE-CURRENT ELECTRICITY-Try Yourself
  1. Find the resistance across AB.

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  2. Current l in the network shown in figure is

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  3. Potential difference across AB in the network shown in figure.

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  4. Maximum current produced by a cell of emf 10 V and internal resistan...

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  5. When the positive and negative electrodes of a cell are denoted as P ...

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  6. About internal resistance of a cell, the correct statement is that it...

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  7. Find the current through the 10 Omega resistance connected across AB

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  8. Four identical cells each having emf E and internal resistance r are ...

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  9. The current l through the cell in the network shown is

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  10. In the network shown below , potential difference across CD is

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  11. Twelve identical resistance R each form a cube as shown in figure. Re...

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  12. In the network shown , find the resistance across AB.

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  13. In the metre bridge, the balancing length AB = 20 cm. The unknown resi...

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  14. An unknown resistance R(1) is connected is series with a resistance of...

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  15. Two cells of emf E(1) and E(2) are to be compared in a potentiometer...

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  16. Consider the circuit shown in Figure . The terminal voltage of the 24...

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  17. N sources of current with different emf's are connected as shown. The ...

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  18. Voltmeter V and Ammeter A are used to measure the total potential dif...

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  19. Could the equation for R(3) lead to a negative valuefor this resistanc...

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  20. Which of the two capacitor plates is at the higher potential ?

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