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With a series combination of 1 Omega and...

With a series combination of `1 Omega` and `2 Omega` resistances another series combination of resistances `5 Omega ` and `7 Omega` cell is joined and the main current of the circuit becomes 0.5 A.What is the terminal potential differences across the `1 Omega` resistances?

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The correct Answer is:
0.4 V
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CHHAYA PUBLICATION-CURRENT ELECTRICITY -EXERCISE ( PROBLEM SET-II)
  1. The coefficient of linear equation of copper is 17times10^-6//^@C and ...

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  2. Two wires are of lengths 1 cm and 2 cm and their diameters are 1 mm an...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  19. 5 Identical cells are connected in series to form a row, 3 such rows a...

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

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