To solve this problem we will apply the concepts related to electric potential energy. This relationship shows us that energy is equivalent to half the product between the capacitance of the body by the squared voltage. Mathematically it can be expressed as,
Here,
C = Capacitance
V = Voltage
E = Energy
The initial capacitance would then be given by
Energy stored in the capacitor with 3V is
Therefore the energy stored in the capacitor if it is charged to 3V is 8mJ
Answer:
The magnetic flux links to its turns = Wb.
Explanation:
Given :
Radius of circular coil = m
Number of turns = 25
Magnetic field = T
Magnetic flux (Φ) is a measure of the magnetic field lines passes through a given area. The unit of magnetic flux is weber (Wb).
We know that,
⇒ Φ =
Where ext. magnetic field,
area of loop or coil.
But here given in question, we have turns of wire so our above eq. modified as follows.
⇒ Φ =
Where no. of turns.
∴ Φ =
Φ =
Thus, the magnetic flux links to its turns =