The electric field inside a parallel plate capacitor is given by:
E = Q/(ε₀A)
E is the electric field, Q is the charge stored on one of the plates, and A is the area of one of the plates.
The plates are circular, so the area A of one of the plates is given by:
A = πr²
where r is the radius.
Therefore the electric field is given by:
E = Q/(ε₀πr²)
Given values:
E = 3×10⁶N/C (max E field allowed before breakdown occurs)
r = 54×10⁻²m
Plug in these values and solve for Q:
3×10⁶ = Q/(ε₀π(54×10⁻²)²)
Q = 2.4×10⁻⁵C
Answer:
The width is
Explanation:
From the question we are told that
The width of the slit is
The wavelength of the light is
The position of the screen is
Generally angle at which the first minimum of the interference pattern the light occurs is mathematically represented as
Where m which is the order of the interference is 1
substituting values
Now the width of first minimum of the interference pattern is mathematically evaluated as
substituting values
Now the width of the pattern's central maximum is mathematically evaluated as
substituting values
Either a or b
not exactly sure which
Correct option is=A
because 25mph means=25miles per hour