Home
Class 12
PHYSICS
A toroid of mean radius 16 cm has 1000 t...

A toroid of mean radius 16 cm has 1000 turns of wire closely wound on a ferromagnetic core of relative permeability 400. What is the magnetic induction B within the core for a magnetizing current of 1A?

Text Solution

Verified by Experts

Data: `r=16 xx 10^(-2) m, N=1000, mu_(r)=400, I=1A, mu_(0) = 4pi xx 10^(-7) T.m//A`
Magnetic field strength, `H=nI = (NI)/(2pir)`
`therefore` The magnetic induction within the core,
`B=mu_(0)mu_(r) H = mu_(0)mu_(r) (NI)/(2pir) = (4pi xx 10^(-7))(400) (1000 xx 1)/(2pi xx 16 xx 10^(-2))`
`=(8 xx 10^(-2))/(16 xx 10^(-2))= 0.5T`
Promotional Banner

Topper's Solved these Questions

  • SOLVED PROBLEMS-II

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise Electromagnetic Induction|13 Videos

  • SOLVED PROBLEMS-II

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise Electrons and Photons|12 Videos

  • SOLVED PROBLEMS-II

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise Magnetic Effect of Electric Current|13 Videos

  • SOLVED PROBLEMS - I

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise ASSIGNMENTS|24 Videos

  • VERY SHORT ANSWER QUESTIONS

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise COMMUNICATION SYSTEMS|11 Videos

Similar Questions

Explore conceptually related problems

A Rowland ring of mean radius 15 cm has 3500 turns of wire wound on a ferromagnetic core of relative permeability 800. What is the magnetic field B in the core for a magnetising current of 1.2 A?

A Rowland ring of mean radius 15cm has 3500 turns of wire wound on a ferromangetic core of relative permeability 800 . What is the magnetic field B in the core for a magnetising current of 1*2A ?

A Rowland ring of mean radius 16 cm has 4000 turns of wire wound on a ferromagnetic core of relative permeability 800 . What is magnetic field in the core for a magnetising current of 1.2 A ?

A Rowland rign of mean radius 18cm has 3500 turns of wire wound on a ferromagnetic core of relative permeability 800 . What is the magnetic field in the core for a magnetising current of 1*2amp .?

A ring of mean radius 15cm has 3500 turns of wire wound on a ferromagnetic core of relative permeability 800 . What is the magnetic field in the core for a magnetising current of 2*4A ?

A Rowland ring of mean radius 15 cm has 4500 turns of wire wound on a ferromagnetic core of relative permeability 800. Find the magnitnde of the magnetic field in the core for a magnetising current of 1.2 A.

A ring of mean radius 15 cm has 3500 turns of wire wound on a ferromagnetic core of relative permeability 800. The magnetic field in the core for a magnetising current of 1.2 A is