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Calculate the energy stored per unit volume in a dielectric medium due to polarisation when P = 9 units and E = 8 units.
- a)1.77
- b)2.25
- c)36
- d)144
Correct answer is option 'C'. Can you explain this answer?
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Calculate the energy stored per unit volume in a dielectric medium due...
Answer: c
Explanation: The energy stored per unit volume in a dielectric medium is given by, W = 0.5 X PE = 0.5 X 9 X 8 = 36 units.
Explanation: The energy stored per unit volume in a dielectric medium is given by, W = 0.5 X PE = 0.5 X 9 X 8 = 36 units.
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Calculate the energy stored per unit volume in a dielectric medium due...
Calculation of Energy Stored per Unit Volume in a Dielectric Medium due to Polarisation
Given: P = 9 units and E = 8 units
We know that the energy stored per unit volume in a dielectric medium due to polarisation is given by:
U = (1/2) * ε * E^2
where U is the energy stored per unit volume, ε is the permittivity of the medium, and E is the electric field strength.
Now, we need to find the value of ε to calculate U.
We know that:
P = ε * E
Therefore, ε = P/E
Substituting P = 9 units and E = 8 units, we get:
ε = 9/8 = 1.125 units
Now, substituting the value of ε in the formula for U, we get:
U = (1/2) * ε * E^2
U = (1/2) * 1.125 * 8^2
U = 36 units
Therefore, the energy stored per unit volume in the dielectric medium due to polarisation is 36 units, which is option C.
Given: P = 9 units and E = 8 units
We know that the energy stored per unit volume in a dielectric medium due to polarisation is given by:
U = (1/2) * ε * E^2
where U is the energy stored per unit volume, ε is the permittivity of the medium, and E is the electric field strength.
Now, we need to find the value of ε to calculate U.
We know that:
P = ε * E
Therefore, ε = P/E
Substituting P = 9 units and E = 8 units, we get:
ε = 9/8 = 1.125 units
Now, substituting the value of ε in the formula for U, we get:
U = (1/2) * ε * E^2
U = (1/2) * 1.125 * 8^2
U = 36 units
Therefore, the energy stored per unit volume in the dielectric medium due to polarisation is 36 units, which is option C.
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Calculate the energy stored per unit volume in a dielectric medium due to polarisation when P = 9 units and E = 8 units.a)1.77b)2.25c)36d)144Correct answer is option 'C'. Can you explain this answer?
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