MHT CET202619 April 2026Evening ShiftPhysicsMagnetic Effects of CurrentActual
The magnetic induction produced inside an ideal solenoid, depends on which of the following quantities ? (a) number of turns per unit length. (b) radius of the wire. (c) current flowing throught it. (d) permeability of the medium.
Options
- A(a), (b) and (d)
- B(a), (b) and (c)
- C(b), (c) and (d)
- D(a), (c) and (d)
Correct answer
D. (a), (c) and (d)
Step-by-step solution
The magnetic induction inside an ideal solenoid is given by the formula B = n I . Here, is the permeability of the medium inside the solenoid, n is the number of turns per unit length, and I is the current flowing through the solenoid. The magnetic induction does not depend on the radius of the wire or the radius of the solenoid. Thus, it depends on the number of turns per unit length, the current flowing through it, and the permeability of the medium. Answer: (a), (c) and (d)