Navigate

A long straight wire of radius a carries a steady current I. The current is uniformly

A long straight wire of radius a carries a steady current I. The current is uniformly distributed over its cross-section. The ratio of the magnetic field B and B’ at radial distances a/2 and 2a respectively, from the axis of the wire is

Options

(a) (1/2)
(b) 1
(c) 4
(d) (1/4)

Correct Answer:

1

Explanation:

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

NEET2016
admin:

Related Questions

  1. A current of 2 A is made to flow through a coil which has only one turn. The magnetic
  2. Solar radiation is
  3. The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second
  4. The input resistance of a silicon transistor is 100 W. Base current is changed
  5. The magnifying power of the astronomical telescope for normal adjustment is 50.