As we know that induced EMF is given by rate of change in magnetic flux
so here we can say
here we know that
so here we can say
now by relation of EMF and electric field we can say
now plug in all values
r = 2.5 cm
f = 17 Hz
so electric field is given as E = 0.085 N/C
Answer:
im sorry i accidentally clicke on this and can only get out if i answer it idk im only in the 8 th grade lol
Explanation:
Answer:
32I
Explanation:
Data provided in the question:
Rotational inertia of a sphere about an axis through the center = I
Now,
Let the radius of the sphere be 'R'
also,
Rotational inertia = MR²
Here,
M is the mass
Mass = Density ÷ Volume
Volume of sphere =
Therefore,
M = Density ×
Thus,
I =
Now for the sphere of radius twice the radius i.e 2R
Volume =
Since the density is same
Mass =
Thus,
I' =
or
I' = 8 × 4 ×
or
I' = 32I