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Find the emf and internal resistance of ...

Find the emf and internal resistance of a single battery which is equivalent to a combination of three batteries as show in figure.

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Find the emf ( V ) and internal resistance (R) of a single battery which is equivalent toa parallel combination of two batteries of emf V_1 and V_2 and internal resistances r_1 and r_2 respectively, with polrities as shown in figure

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DC PANDEY ENGLISH-CURRENT ELECTRICITY-Example
  1. Find the current drawn from a cell of emf 2 V and internal resistance ...

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  2. In the circuit shown in figure E1=10 V, E2=4V, r1=r2=1Omega and R...

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  3. Find the emf and internal resistance of a single battery which is equi...

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  4. Two identical cells of emf 1.5 V each joined in paralllel provide supp...

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  5. Find the minimum number of cell required to produce an electron curren...

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  6. 36 cells each of internal resistance 0.5 Omega and emf 1.5 V each are ...

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  7. 12 cells, each of emf 1.5 V and internal resistance of 0.5Omega, are a...

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  8. Find currents in different branches of the electric circuit shown in f...

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  9. In example above, find the potential difference between points F and C...

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  10. (i) Find the potential difference between A and B.

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  11. In the circuit shown in figure find the heat developed across each res...

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  12. In the circuit shown in the following figure, find

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  13. In the following figures, each of the three resistances, the rating of...

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  14. Two bulbs having rating of 60 W, 220 V and 100 W, 220 V are joined (i)...

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  15. Two bulbs having rating of 40 W, 220 V and 100 W, 220 V are joined in ...

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  16. In the above example, if we join the bulbs in parallel and 300 V is ap...

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  17. Two coils of power 60 W and 100 W and both operating at 220 V takes ti...

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  18. A series circuit consists of three bulbs connected to a battery as sh...

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  19. What shunt resistance is required to make the 1.00 mA, 20 Omega Galvan...

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  20. How can we make a galvanometer with G=20 Omega and ig=1.0 mA into a vo...

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