Question

The rate of change of magnetic flux density through a circular coil of area 10^-2 m² and number of turns 200 is 10³ Wb/m² s. The value of induced e.m.f. will be ____________.

पर्याय

• 2 x 10^-2 V

• 2 x 10³ V

• 10 V

• 10³ V

Answer 1

The rate of change of magnetic flux density through a circular coil of area 10^-2 m² and number of turns 200 is 10³ Wb/m² s. The value of induced e.m.f. will be 2 x 10³ V.

Explanation:

`abs "e" = "nA"  "dB"/"dt"`

` = 200 xx 10^-2 xx 10^3`

`= 2 xx 10^3  "volt"`