Question

Hello guys


Answer the attachment plz​

Answer 1

Emf is given by,

E = 0.5BL²w

E = 0.5*0.5*(1²)*400

E = 100 V

Answer 2

$\huge\bf Given:-$

• Length of rod l = 1m
• Angular f of rotation ௰ = 400 s-¹
• Uniform magnetic Field ẞ = 0.5 t

$\huge\bf To\: find:-$

• EMF = ?

$\huge\bf Solution:-$

Average linear velocity v = $\frac{0+l௰}{2}$ = $\frac{l௰}{2}$

$\sf{\red{★ V = r௰}}$

Now,

↬E = $\frac{ẞ}{V}$

↬E = ßi $\frac{l௰}{2}$

↬E = $\frac{ẞl²௰}{2}$

↬E = $\frac{0.5×1²×400}{2}$

$\boxed{\text{↬E = 100 v}}$