A secondary cell after long use has an emf of 1-9 V and a large internal resistance pf 380 Omega- What maximum current can be drawn from the cell- Could the cell drive the starting motor of a car-

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Standard XII

Physics

NCERT

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A secondary cell after long use has an emf of 1.9 V and a large internal resistance pf $380 Ω$ . What maximum current can be drawn from the cell? Could the cell drive the starting motor of a car?

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A secondary cell after long use has an emf of

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and a large internal resistance of

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(a) Six lead-acid type of secondary cells each of emf 2.0 V and internal resistance

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Six lead-acid type of secondary cells each of emf

2.0 V

and internal resistance

0.015 Ω

are joined in series to provide a supply to a resistance of

8. 5 Ω .

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A secondary cell after long use has an emf of

1.9 V

and a large internal resistance of

380 Ω .

What maximum ncurrent can be drawn from the cell? Could the cell drive the starting motor of a car?

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(a) Six lead-acid type of secondary cells each of emf 2.0 V and internalresistance 0.015 W are joined in series to provide a supply to aresistance of 8.5 W. What are the current drawn from the supplyand its terminal voltage? (b) A secondary cell after long use has an emf of 1.9 V and a largeinternal resistance of 380 W. What maximum current can be drawnfrom the cell? Could the cell drive the starting motor of a car?

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(a) Six lead-acid type of secondary cells each of emf 2.0 Vand internal resistance 0.015 Ω arejoined in series to provide a supply to a resistance of 8.5 Ω.What are the current drawn from the supply and its terminal voltage?

(b) A secondary cell after long use has an emf of 1.9 V and alarge internal resistance of 380 Ω.What maximum current can be drawn from the cell? Could the cell drivethe starting motor of a car?

View Solution

A secondary cell after long use has an emf of 1.9 V and a large internal resistance pf 380Ω. What maximum current can be drawn from the cell? Could the cell drive the starting motor of a car?

A secondary cell after long use has an emf of 1.9 V and a large internal resistance pf $380 Ω$ . What maximum current can be drawn from the cell? Could the cell drive the starting motor of a car?