Home
Class 12
PHYSICS
Three wires whose lengths are in the rat...

Three wires whose lengths are in the ratio `3:8:18` and radii in the ratio `1:2:3` are connected in parallel. Find the ratio of the currents through them.

Text Solution

Verified by Experts

The correct Answer is:
`2:3:3`
Promotional Banner

Topper's Solved these Questions

  • FUNDAMENTAL OF CURRENT ELECTRICITY

    NN GHOSH|Exercise Exercises|45 Videos
  • ELECTROMAGNETIC INDUCTION

    NN GHOSH|Exercise EXERICISES-B|18 Videos
  • GALVANOMETERS: AMMETER AND VOLTMETERS

    NN GHOSH|Exercise Exercise|32 Videos

Similar Questions

Explore conceptually related problems

Two capillary tubes of lengths in the ratio 2 : 1 and radii in the ratio 1 : 2 are connected in series. Assume the flow of the liquid through the tube is steady. Then, the ratio of pressure difference across the tubes is

Two wires 'A' and 'B' of the same material have their lengths in the ratio 1 : 2 and radii in the ratio 2 : 1 The two wires are connected in parallel across a battery. The ratio of the heat produced in 'A' to the heat produced in 'B' for the same time is

An electric current is passed through a circuit containing two wires of the same material connected in parallel. If the length and radii of the wires are in the ratio 2//3 and 4//3 , then find the ratio of the current passing through the wires

Two wires of the same material having lengths in the ratio 1 : 2 and diameters in the ratio 2 : 3 are connected in series with an accumulator. Compute the ratio of P.D. across the two wires.

An electric current is passed through a circuit containing two wires of same material, connected in parallel. If the lengths and radii of the wires are in the ratio of 3:2 and 2:3, then the ratio of the current passing through the wire will be

Two wires are kept tight between the same pair of supports. The tensions in the wires are in the ratio 2 : 1, the radii are in the ratio 3 : 1 and the densities are in the ratio 1 : 2. Find the ratio of their fundamental frequencies.

NN GHOSH-FUNDAMENTAL OF CURRENT ELECTRICITY-Exercises
  1. The resistance of 100m of copper wire of diameter 0.056 xx 10^(-2) m i...

    Text Solution

    |

  2. Calcualte the resistance of a steel wire of length 10m and diameter 0....

    Text Solution

    |

  3. Three wires whose lengths are in the ratio 3:8:18 and radii in the rat...

    Text Solution

    |

  4. A moving coil galvanometer of resistance 50Omega is connected in serie...

    Text Solution

    |

  5. A resistance box, a battery and a galvanometer of resistance G ohm are...

    Text Solution

    |

  6. A shunt is to be applied to a galvanometer of 99Omega so that only 10%...

    Text Solution

    |

  7. Two identical cells of emf 1.5V and internal resistance 1Omega are joi...

    Text Solution

    |

  8. A battery of emf 6V internal resistance 5Omega is joined in parallel w...

    Text Solution

    |

  9. A battery of emf 6 volts and internal resistance 1Omega is connected i...

    Text Solution

    |

  10. Two batteries of emfs 24V and 6V and internal resistance 2Omega and 1O...

    Text Solution

    |

  11. The sides of a square ABCD are formed of wires, each of resistance r a...

    Text Solution

    |

  12. In a wheatstone bridge, the resistance of the arms of the bridge are A...

    Text Solution

    |

  13. ABCD is a square of side a meters and is mae up of wires of resistance...

    Text Solution

    |

  14. A battery of 2V and internal resistance 2Omega is used in wheatstone b...

    Text Solution

    |

  15. When one mole of zinc combines with sulphuric acid 445 kJ of heat is l...

    Text Solution

    |

  16. Two resistors with temperature coefficients of resistance alpha1 and a...

    Text Solution

    |

  17. Show that if E is the electric intensity inside a conductor of electri...

    Text Solution

    |

  18. Show that drift velocity of electrons in a conductor is given by u = J...

    Text Solution

    |

  19. A spherical silver electrode of radius 8cm is concentric with a spheri...

    Text Solution

    |

  20. Two batteries of emf 12V and 6V and internal resistance 2Omega and 1Om...

    Text Solution

    |