Home
Class 12
PHYSICS
the ratio of potential gradients is 1:2,...

the ratio of potential gradients is `1:2`, the resistance of two potentiometer wires of same length are `2Omega&4Omega` respectively. The current flowing through them are in the ratio

A

`1:2`

B

`2:1`

C

`1:3`

D

`1:1`

Text Solution

Verified by Experts

The correct Answer is:
D
`(i_(1))/(i_(2))=(V_(1))/(V_(2))(R_(2))/(R_(1))`
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 3|46 Videos

  • CURRENT ELECTRICITY

    NARAYNA|Exercise NCERT Based Questions|13 Videos

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 2 C.W|59 Videos

  • COMMUNICATION SYSTEM

    NARAYNA|Exercise Level-II(H.W)|25 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    NARAYNA|Exercise ASSERTION AND REASON|15 Videos

Similar Questions

Explore conceptually related problems

Calculate the current flows through resistance 2Omega .

The specific resistance and area of cross section of the potentiometer wire are rho' and A respectively. If a current i passes through the wire, its potential gradient will be

A potentiometer has uniform potential gradient. The specific resistance of the material of the potentiometer wire is 10^(-7) ohm-metre and the current passing through it is 0.1 ampere, cross-section of the wire is 10^(-6)" m"^(2) . The potential gradient along the potentiometer wire is

The terminals of a cell are cnnected to resistance R and the falll of potential across R is balaced against the fall of potential on a potentiometer wire.When R is 20 Omega and 10 Omega respectively, the corresponding lengths of potentiometer wire are 1.5 m and 1.2 m Claculate the internal resistance of the cell

A potentiometer has uniform potential gradient. The specific resistance of the material of the potentiometer wire is 10^(-7) ohm-meter and the current passing through it is 0.1 ampere, cross-section of the wire is 10^(-6)m^(2) . The potential gradient along the potentiometer wire is

As is the cross sectional area and rho is the specific resistance of a potentiometer wire. If I is the current passing through the potentiometer wire, then the potential gradient along the length of the wire is given by

Resistivity of potentiometer wire is 10^(-7) ohm metre and its area of cross-section is 10^(-6)m^2 . When a current l=0.1A flows through the wire, its potential gradient is:

In the shown figure, bridge is balanced, the current flowing through 2Omega resistance is

NARAYNA-CURRENT ELECTRICITY-Level 2 H.W
  1. Two cells of emf 3V and 5V and internal resistance r(1) and r(2) respe...

    Text Solution

    |

  2. A battery when connected by resistance of 16Omega gives a terminal vo...

    Text Solution

    |

  3. When a resistor of 11 Omega is connected in series with an electric ce...

    Text Solution

    |

  4. Two cells of emf 4 V and 8 V are connected to two resistor 4Omega and ...

    Text Solution

    |

  5. If in the circuit shown below, the internal resistance of the battery ...

    Text Solution

    |

  6. Voltmeter reading in the given circuit is (voltmeter is ideal)

    Text Solution

    |

  7. For a cell the graph between the p.d. (v) across the terminals of the ...

    Text Solution

    |

  8. The minimum number of cells in mixed grouping required to produced a m...

    Text Solution

    |

  9. A battery of emf E and internal resistance r is connected to a resisto...

    Text Solution

    |

  10. The emf of a cell E is 15 V as shown in the figure with an internal re...

    Text Solution

    |

  11. The current I drawn from the 5 volt source will be

    Text Solution

    |

  12. In the given circuit which is a part of closed circuit the current i(1...

    Text Solution

    |

  13. A 5V battery with internal resistance 2Omega and a 2V battery with int...

    Text Solution

    |

  14. When a conductor is connected in the left gap and known resistance in ...

    Text Solution

    |

  15. In a meter bridge experiment when a resistance wire is connected in th...

    Text Solution

    |

  16. Shown in the figure below is a meter- bridge set up will null deflecti...

    Text Solution

    |

  17. A potentiometer wire 10m long has a resistance of 40Omega. It is conne...

    Text Solution

    |

  18. the ratio of potential gradients is 1:2, the resistance of two potenti...

    Text Solution

    |

  19. The length of a wire of a potentiometer is 100 cm, and the e.m.f. of i...

    Text Solution

    |

  20. 1 ohm resistance is in series with a Ammeter which is balanced by 75 c...

    Text Solution

    |