Answer :
Answer:25.23 V
Explanation:
Given
no of turns [tex]N=60 turns[/tex]
Magnetic Field [tex]B=1.2 T[/tex]
Area of rectangular coil [tex]A=23\times 31=713 cm^2\approx 0.0713m^2[/tex]
Change in magnetic Flux is given by
[tex]\Delta \phi =BA\cos \theta [/tex]
[tex]\Delta \phi =1.2\times 0.0736\cos 0=0.08832 V-s[/tex]
(b)Emf induced change in Flux with respect to time and it can be given by
[tex]E=-N\frac{\mathrm{d} \phi }{\mathrm{d} t}[/tex]
[tex]E=-60\times \frac{0.08832}{0.21}[/tex]
[tex]E=-25.23 V[/tex]
The magnitude of emf induced is [tex]25.23 V[/tex]