Answer:
The time rate of change of the electric field between the plates is 
Explanation:
From the question we are told that
The radius is 
The distance of separation is 
The current is 
Generally the electric field generated is mathematically represented as
Where 
is the permitivity of free space with a value
So the time rate of change of the electric field between the plates is mathematically represented as
But 
So
substituting values
According to chapter 1 in the mixture of particles Article a mixture has to contain a serten size to mix with another particle so i would go with B size of the largest particle
Answer:
Explanation:
As the current density is given as
now we have current inside wire given as
Now by Ampere's law we will have
Answer:
11.515 Joule
Explanation:
Volume of aluminium = V = 4.89×10⁻³ m³
Coefficient of volume expansion for aluminum = α = 69×10⁻⁶ /°C
Initial temperature = 19.1°C
Final temperature = 357°C
Pressure of air = 1.01×10⁵ Pa
Change in temperature = ΔT= 357-19.1 = 337.9 °C
Change in volume
ΔV = αVΔT
⇒ΔV = 69×10⁻⁶×4.89×10⁻³×337.9
⇒ΔV = 114010.839×10⁻⁹ m³
Work done
W = PΔV
⇒W = 1.01×10⁵×114010.839×10⁻⁹
⇒W = 11.515 J
∴ Work is done by the expanding aluminum is 11.515 Joule
