Navigate

A wire of one metre length carries a constant current. The wire is bent to form

A wire of one metre length carries a constant current. The wire is bent to form a circular loop. The magnetic field at the centre of this loop is B.The same is now bent to form a circular loop of smaller radius having four turns. The magnetic field at the centre of this new loop will be

Options

(a) B/2
(b) 4B
(c) B/4
(d) 16B

Correct Answer:

16B

Explanation:

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

BHU2012
admin:

Related Questions

  1. Resistances n, each r Ω, when connected in parallel give an equivalent resistance
  2. A particle with charge q is moving along a circle of radius R with unoform speed v.
  3. A rod of weight W is supported by two parallel knife edge A and B
  4. The e.m.f. of a battery is 2 V and its internal resistance is 0.5 Ω. The maximum
  5. A particle moves along the x-axis from x=0 to x=5 m under the influence of a force