A square coil of side 25 cm having 1000 turns is rotated with a uniform speed in a magnetic field about an axis perpendicular to the direction of the field. At an instant t , the EMF induced in the coil is E = 200 sin 100 πt . The magnetic induction is

Question

A square coil of side 25 cm having 1000 turns is rotated with a uniform speed in a magnetic field about an axis perpendicular to the direction of the field. At an instant t , the EMF induced in the coil is E = 200 sin 100 πt . The magnetic induction is, 0 . 02 T, 10 - 3 T, 0 . 1 T, 0 . 01 T

MARKS App · Accepted Answer

e = 200 sin ⁡ 100 πt We have, e 0 = 200 ω = 100 π ∴ BANω = e 0 ∴ B = e 0 ANω B = 200 ( 0 .25 × 0 .25 ) × 1000 × 100 π Or B = 0 .01 T

Search any question & find its solution

Looking for more such questions to practice?