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Parallel Combination of Cells

the cell deli...

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the cell delivers equal power to load resistances R1 and R2 individually the value of internal resistance of the cell is

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Q. A cell of constant emf first connected to a resistance

R_{1}

and then connected to a resistance

R_{2}

. If power delivered in both cases is same, then the internal resistance of the cell is

Q. A cell develops the same power across two resistance

R_{1}

R_{2}

separately. The internal resistance of the cell is-

Q. A battery is delivering same power to resistance

R_{1}

R_{2}

. Then find the internal resistance of battery :

Q. Two cells of same emf are in series with an external resistance R. The internal resistance

r_{1}

r_{2}

. The p.d across the

1^{s t}

cell is found to be zero the value of R is

Q. Assertion :In the circuit in fig, both cells are ideal and of fixed emf, the resistor

R_{1}

has fixed resistance and the resistance of resistor

R_{2}

can be varied (but

R_{2}

is always nonzero). Then the electric power delivered to the resistor of resistance

R_{1}

is independent of the value of resistance

R_{2}

. Reason: If potential difference across a fixed resistance is unchanged, the power delivered to the resistor remains constant.

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