Home
Class 12
PHYSICS
A letter A consists of a uniform wire of...

A letter A consists of a uniform wire of resistance 1 ohm per cm. The sides of the letter are each 20 cm long and the cross-piece in the middle is 10 cm long while the apex angle is `60^(@)`. Find the resistance of the letter between the two ends of the legs.

Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    SL ARORA|Exercise Problems From Competitive|18 Videos
  • CURRENT ELECTRICITY

    SL ARORA|Exercise Problems For Self|101 Videos
  • CHEMICAL EFFECT OF CURRENT

    SL ARORA|Exercise TYPE-B|5 Videos
  • ELECTRIC POTENTIAL AND ELECTRIC FLUX

    SL ARORA|Exercise Problems for self practive|61 Videos

Similar Questions

Explore conceptually related problems

A letter A is constructed as a uniform wire of resistance 1 ohm/cm. The sides of the letter are 20 cm long and the cross piece in the middle is 10 cm long while the vertex angle is 60^(@) the resistance of the letter between the two ends of the legs is

A 12 -cm-long wire is bent to form a triangle with one of the angles as 60^(@). Find the sides of the triangle if its area is the largest.

A12-cm-long wire is bent to form a triangle with one of the angles as 60^(@). Find the sides of the triangle if its area is the largest.

Two sides of a triangle are 10 cm and 15 cm and the base is 20 cm long . If another triangle similar to the first triangle has the base measuring 32 cm , then other two sides of the triangle are

The angle between two legs of a compass is 60^(@) and length of each is 10 cm the distance between end points of the leg is

A piece of wire 20 cm long is bent into the from of an arc of a circle, subtending an angle of 60^(@) at its centre. Find the radius of the circle.

Letter A as shown in Fig. 4.57 has resistance on each side of arm. Calculate the total resistance between two ends of the legs.

A L cm long wire is bent to form a triangle with one of it's angle as 60^(@) .Find the sides of the triangle for which area is largest.

SL ARORA-CURRENT ELECTRICITY-Problems For Self
  1. A letter A consists of a uniform wire of resistance 1 ohm per cm. The ...

    Text Solution

    |

  2. One billion electrons pass from a point P towards another point Q in 1...

    Text Solution

    |

  3. Calculate the number of free electrons passing through the filament of...

    Text Solution

    |

  4. In the electrolysis of silver chloride, a charge of 4xx10^(5) C is flo...

    Text Solution

    |

  5. In a hydrogen atom, the electron makes about 0.6xx10^(16) revolutions ...

    Text Solution

    |

  6. An electron gun emits 2.0xx10^(16) electrons per second. What is the a...

    Text Solution

    |

  7. An electric current of 2.0 mu A exists in a discharge tube. How much c...

    Text Solution

    |

  8. An electron moves in a circular orbit of radius 10 cm with a constant ...

    Text Solution

    |

  9. The current through a wire depends on time as I=I(0)+alpha t, where I(...

    Text Solution

    |

  10. A current of 4.8 A is flowing in a copper wire of cross-sectional area...

    Text Solution

    |

  11. A voltage of 30 V is applied across a colour coded carbon resistor wit...

    Text Solution

    |

  12. The sequence of bands marked on a carbon resistor is yellow , red oran...

    Text Solution

    |

  13. The resistance of a conductivity wire of length 1.1 m and of diameter ...

    Text Solution

    |

  14. A metal wire of specific resistance 64xx10^(-6) Omega m and length 1.9...

    Text Solution

    |

  15. A negligbly small current is passed through a wire of length 15 cm and...

    Text Solution

    |

  16. Calculate the resistance of a 2 m long nichrome wire of radius 0.321 m...

    Text Solution

    |

  17. Find the resistance of a hollow cylindrical conductor of length 1.0m a...

    Text Solution

    |

  18. Calculate the electric field in a copper wire of cross-sectional area ...

    Text Solution

    |

  19. A given copper wire of resistance R is stretched to reduce its diamete...

    Text Solution

    |

  20. What will be the change in resistance of a constantan wire when its ra...

    Text Solution

    |

  21. A wire of resistance 10 Omega is drawn out so that its length is thric...

    Text Solution

    |