Answer:
a. Capacitance
b. Charge on the plates
e. Energy stored in the capacitor
Explanation:
Let A be the area of the capacitor plate
The capacitance of a capacitor is given as;
where;
V is the potential difference between the plates
The charge on the plates is given as;
The energy stored in the capacitor is given as;
Thus, the physical variables listed that will change include;
a. Capacitance
b. Charge on the plates
e. Energy stored in the capacitor
Answer:
The mutual inductance is
Explanation:
From the question we are told that
The number of turns per unit length is
The radius is
The number of turns of the solenoid is
Generally the mutual inductance of the system is mathematically represented as
Where A is the cross-sectional area of the system which is mathematically represented as
substituting values
also is the permeability of free space with the value
So
Answer:
Option B
Change in entropy of the process is
Explanation:
The entropy of a system is a measure of the degree of disorderliness of the system.
The entropy of a system moving from process 1 to 2 is given as
recall from first law,
hence we have,
since the process is isothermal,
this gives us
integrating within the limits of 1 and 2, will give us
also from ideal gas laws,
hence we have
This makes the correct option B