Navigate

An iron rod of volume 10⁻⁴ m³ and relative permeability 1000 is placed inside a long

An iron rod of volume 10⁻⁴ m³ and relative permeability 1000 is placed inside a long solenoid having 5 turns/cm. If a current of 0.5 A is passed through the solenoid, then the magnetic moment of the rod is

Options

(a) 20 Am²
(b) 25 Am²
(c) 30 Am²
(d) 35 Am²

Correct Answer:

25 Am²

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

BCE2012
admin:

Related Questions

  1. Equal currents are passing through two very long and straight parallel wires
  2. A boy standing at top of a tower of 20 m height drops a stone
  3. Two forces of magnitude 8N and 15N respectively act at a point so as to make the resultant force
  4. The amplitude of S.H.M. y=2 (sin 5πt+√2 cos 5πt) is
  5. An observer moving away from a stationary source. The observed frequency is half