Dimension of a rectangular coil is 20cm× 10cm . Number of turns in coil is 60. It is rotating in an uniform magnetic field of 0.5T, with a speed 1800 r.p.m. the maximum induced e.m.f. is:

Question

Dimension of a rectangular coil is 20cm× 10cm . Number of turns in coil is 60. It is rotating in an uniform magnetic field of 0.5T, with a speed 1800 r.p.m. the maximum induced e.m.f. is: (A)  98 V  (B)  110 V  (C)  113 V  (D)  118 V

Tardigrade Admin · Accepted Answer

Maximum induced e.m.f. E=N A B ω =N A B . 2π n =60× 20× 30× 10-4× 0.5× 2π × (1800/60) =113 volt

Q. Dimension of a rectangular coil is $20 c m \times 10 c m$ . Number of turns in coil is 60. It is rotating in an uniform magnetic field of $0.5 T,$ with a speed 1800 r.p.m. the maximum induced e.m.f. is:

$98 V$

$110 V$

$113 V$

$118 V$

Maximum induced e.m.f. $E = N A B ω$ $= N A B . 2 πn$ $= 60 \times 20 \times 30 \times 10^{- 4} \times 0.5 \times 2 π \times \frac{1800}{60}$ $= 113 v o lt$

Q. Dimension of a rectangular coil is 20cm×10cm . Number of turns in coil is 60. It is rotating in an uniform magnetic field of 0.5T, with a speed 1800 r.p.m. the maximum induced e.m.f. is:

98V

110V

113V

118V