Home
Class 12
PHYSICS
A copper wire of diameter 1.6 mm carries...

A copper wire of diameter 1.6 mm carries a current of 20A. Find the maximum magnitude of the magnetic field ('vecB')due to this current.

Text Solution

Verified by Experts

Here diameter `= 1.6xx10^(-3)m`
`. `:. Radius = 0.8xx10^(-3) m`
`. we know B = (mu0 i)/(2pir)`
` `=(2xx10^(-7)xx 20)/(0.8xx10^(-3) = 5mt`
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC FIELD DUE TO CURRENT

    HC VERMA|Exercise Objective 2|7 Videos

  • MAGNETIC FIELD

    HC VERMA|Exercise Exercises|60 Videos

  • MAGNETIC PROPERTIES OF MATTER

    HC VERMA|Exercise Exercise|9 Videos

Similar Questions

Explore conceptually related problems

Consider a 10-cm long piece of a wire which carries a current of 10A . Find the magnitude of the magnetic field due to the piece at a point which makes an equilateral triangle with the ends of the piece.

A long copper wire of diameter 2 mm carries a current of 1.5 A. a. What is the magnetic field (B) at a perpendicular distance 1 m from the middle of the wire? b. What is the field (B) on the surface of the conductor? c. At a distance 1 mm from the axis, what is the value of the magnetic field?

A cirular coil of wire cansiting of 100 turns ,each of readius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field barB at the centre of the coil ?

Consider a tightly wound 100 turn coil of radius 10 cm, carrying a current of 1 A. What is the magnitude of the magnetic field at the centre of the coil?

A horizontal overhead power line carries a current of 90 A in east to west direction. What is the magnitude and direction of the magnetic field due to the current 1.5 m below the line ?

A current carrying wire produces a magnetic field in its surrounding space A. The S.I. unit of magnetic flux density is a. henry b. tesla c. Am^(2) d. A-m B. With the help of a diagram, derive an expression for the magnetic field at the point on the axis of a circular current loop. C. Consider a tightly wound 100 turn coil of radius 10 cm, carrying a current of 1 A. What is the magnitude of the magnetic field at the centre of the coil?

A wire of length 2m carries a current of 1A is bend to form a circle. The magnetic moment of the coil is:

A long, cylindrical wire of radius b carries a current i distributed uniformly over its cross section. Find the magnitude of the magnetic field at a point inside the wire at a distance a from the axis.

Two long and parallel street wires carrying current of 2A and 5A in the opposite direction are separated by a distance of 1 cm. Find the nature and magnitude of the magnetic force between them.

A circular coil of radius 1*5 cm carries a current of 1*5A . If the coil has 25 turns , find the magnetic field .What is the value of M ?

HC VERMA-MAGNETIC FIELD DUE TO CURRENT-exercise
  1. Using the formulae ((vecF)=(vec qv)xx (vec B) and B= (mu0)i/(2pi r ),f...

    Text Solution

    |

  2. A current of 10A is established in a long wire along the positive z-ax...

    Text Solution

    |

  3. A copper wire of diameter 1.6 mm carries a current of 20A. Find the ma...

    Text Solution

    |

  4. A transmission wire carries a current of 100A. What would be the magne...

    Text Solution

    |

  5. A long, straight wire carrying a current of 1.0 A is placed horizontal...

    Text Solution

    |

  6. A long, straight wire of radius r carries a current i and is placed ho...

    Text Solution

    |

  7. A long, vertical straight wire carrying a current of 30 A is placed in...

    Text Solution

    |

  8. A long vertical wire carrying a current of 10A in the upward direction...

    Text Solution

    |

  9. Figure shows two parallel wires separated by a distance of 4.0 cm and ...

    Text Solution

    |

  10. Two parallel wires carry equal currents of 10A along the same directio...

    Text Solution

    |

  11. Two long, straight wires, each carrying a current of 5A, are placed al...

    Text Solution

    |

  12. Four long, straight wires, each carrying a current of 5.0 A, are place...

    Text Solution

    |

  13. Figure shows a long wire bent at the middle to form a right angle. Sho...

    Text Solution

    |

  14. Consider a straight piece of length x of a wire carrying a current i. ...

    Text Solution

    |

  15. Consider a 10-cm long piece of a wire which carries a current of 10A ....

    Text Solution

    |

  16. A long, straight wire carries a current i. Let B1 be the magnetic fiel...

    Text Solution

    |

  17. Figure shows a square loop ABCD with edge length a. The resistance of ...

    Text Solution

    |

  18. Figure shows a square loop of edge a made of a uniform wire. A current...

    Text Solution

    |

  19. Consider the situation described in the previous problem. Suppose the ...

    Text Solution

    |

  20. The wire ABC shown in figure forms an equilateral triangle. Find the m...

    Text Solution

    |