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What should be the value of R in figure ...

What should be the value of R in figure fo which the current in it is zero?

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Current value of R, the current in the
branch is Q.
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HC VERMA-ELECTRIC CURRENT IN CONDUCTORS-Exercises
  1. Find the current through the 10(Omega)resistor shown in figure.

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  2. Find the current in the resistor shown in figure.

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  3. What should be the value of R in figure fo which the current in it is ...

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  4. Find the equivalent resistance of the circuit shown in figure between ...

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  5. Find the current measured by the ammeter in the circuit shown in figur...

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  6. Consider the circuit shown in figure.Find (a) the current in the circu...

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  7. Twelve wire, each having equal resistance r, are joined to form a cube...

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  8. Find the equivalent resistances of the network shown in figure between...

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  9. An infinite ladder is constructed with 1(Omega)and 2(Omega)resistor as...

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  10. The emf (epsilon)and the internal resistance r of the battery shown in...

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  11. A voltmeter of resistances 400(Omega)is used to measure the potential ...

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  12. The voltmeter shown in figure reads 18V across the 50(Omega)resistor. ...

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  13. A voltmeter consists of a 25(Omega) coil connected in series with a 57...

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  14. An ammeter is to be constructed which can read currents up to 2.0A. If...

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  15. A voltmeter coil has resistance 50.0(Omega)and a resistor of 1.15k(Ome...

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  16. The potentiometer wire AB shown in figure is 40 cm long. Where should ...

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  17. The potentiometer wire AB shown in figure is 50cm long.When AD=30cm, n...

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  18. A 6-volt battery of negligible internal resistance is connected across...

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  19. Consider the potentiometer circuit arranged as in figure.The petentiom...

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  20. Find the charge on the capacitor shown in figure

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