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The emf of a dry cell is 1.5 V , when an...

The emf of a dry cell is 1.5 V , when an ammeter and a resistance are connected with the series combination of two dry cells in series,then the ammeter reads 1A,and when the cells are connected in parallel the reading of the ammeter becomes 0.75A What is the internal resistance of the dry cell? Draw the circuit diagrams?

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`2/3 Omega`
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CHHAYA PUBLICATION-CURRENT ELECTRICITY -EXERCISE ( PROBLEM SET-II)
  1. Two wires are of lengths 1 cm and 2 cm and their diameters are 1 mm an...

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  2. With a series combination of 1 Omega and 2 Omega resistances another s...

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  3. A quadrilateral ABCD is made of conducting wires AB=3 Omega,BC=2 Omega...

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  4. 5A current is divided into three parallel branches in a circuit.The ra...

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  5. An electric cell of emf 10 V and of internal resistance 1 Omega is con...

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  6. Three resistances 8 Omega,20 Omega and 40 Omega are connected in paral...

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  7. An electric cell is sending electric currents through a resistance of ...

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  8. A parallel combination of three resistances of 6 Omega, 12 Omega and 1...

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  9. Three resistances of 4 Omega , 5Omega and 12 Omega are connected in p...

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  10. The resistances of a galvanometer is 200 Omega and full-scale deflecti...

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  11. Current is sent through a galvanometer of resistance 50 Omega from a b...

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  12. A shunt is connected with a galvanometer in such a way that 1/90 part ...

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  13. A resistor of magnitude 45 Omega is connected to an electric cell of e...

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  14. Two resistor of magnitudes 300 Omega and 400 Omega are connected with ...

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  15. A number of cells of negligible resistance are connected with battery ...

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  16. A cell AB of resistance 500 Omega is connected to a battery of emf 12 ...

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  17. A certain circuit with resistance R-100 Omega is powered by a direct c...

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  18. 5 Identical cells are connected in series to form a row, 3 such rows a...

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  19. The emf of a dry cell is 1.5 V , when an ammeter and a resistance are ...

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  20. A series combination of n identical cells has two cells P and Q with r...

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