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A storage battery of emf 12V and interna...

A storage battery of emf 12V and internal resistance of ` 1.5 Omega ` is being charged by a 12 V supply. How much resistance is to be put in series for charging the battery safely, be maintaining a constant charging current of 6 A.

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R = `16.5 Omega `
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CBSE COMPLEMENTARY MATERIAL-ELECTROSTATICS AND CURRENT ELECTRICITY -NUMERICALS
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  2. Calculate the equivalent resistance and current shown by the ammeter i...

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  3. A storage battery of emf 12V and internal resistance of 1.5 Omega is...

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  4. Three cells are connected in parallel, with their like poles connected...

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  7. With a certain unknown resistance X in the left gap and a resistance o...

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  8. Figure show a potentiometer circuit for comparison of two resistances....

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  9. In a potentiometer, a standard cell of emf 5V of negligible internal r...

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  10. Potential difference across terminals of a cell are measured (in volt)...

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  11. Four cells each of internal resistance 0.8 Omega and emf 1.4 V, d a...

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  12. In the figure, an ammeter A and a resistor of resistance R = 4 Omega ...

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  13. In the circuit shown, the reading of voltmeter is 20V. Calculate resis...

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  14. (i) Calculate Equivalent Resistance of the given electrical network b/...

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  15. A potentiometer wire AB of length 1m is connected to a driver cell of ...

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  16. A battery of emf 10 v and internal resistane 3 Omega is connected to ...

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  17. A network of resistance is connected to a 16V battery with internal re...

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  18. The number density of free electrons in a copper conductor is estimate...

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  19. A voltmeter of resistance 400 Omega is used to measure the potential...

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  20. Find magnitude of current supplied by battery. Also find potential dif...

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