A circular coil of N turns and radius R is kept normal to a magnetic field given by B=BoCoswt. Deduce an expression for emf induced in this coil. State the rule which helps to detect the direction of induced current?
Asked by Mrinal | 25th Dec, 2012, 07:12: PM
Expert Answer:
Area of the coil, A = ?r2
Magnetic field of the coil, B = Bocos?t
=> Magnetic flux linked with the coil, ? = NB.A
=> ? = NBA cos0
=> ? = NBA
Induced emf, e = - d?/dt = ?NABosin?t
Flemings right hand rule helps to detect the direction of induced current.
Area of the coil, A = ?r2
Magnetic field of the coil, B = Bocos?t
=> Magnetic flux linked with the coil, ? = NB.A
=> ? = NBA cos0
=> ? = NBA
Induced emf, e = - d?/dt = ?NABosin?t
Flemings right hand rule helps to detect the direction of induced current.
Answered by | 25th Dec, 2012, 10:25: PM
Related Videos
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change