Question

two circular coils x and y have the same magnetic induction b the current flowing through the coil xis 3a and through coil y is 5a if the point p is place the centre of both the coils and radius of the coil x is 4cm then the radius of coil y is​

Answer 1

Answer:

anwer is 6.67 cm

Explanation:

hope it help u

Answer 2

The radius of coil y is​ 2.4 cm

Explanation:

The magnetic induction of the coil is:

B = (μ₀nI)/2R

The magnetic induction of the coil x is:

bx = (μ₀n × 3a)/2R

The magnetic induction of the coil y is:

by = (μ₀n × 5a)/(2 × 0.04) = (μ₀n × 5a)/0.08

Now, the magnetic induction of both coils:

bx = by

(μ₀n × 3a)/2R = (μ₀n × 5a)/0.08

3/2R = 5/0.08

R = 3/2 × 0.08/5

∴ R = 0.024 m = 2.4 cm