Acapacitor has a potential difference of v applied across its plates. if the potential difference across its plates is increased to 2v, the energy stored in the capacitor is: a) reduced to half
b) doubles
c) reduced to one fourth
d) quadruples (four times bigger)
e) none of the above

Option B. doubles

Explanation:

This can be explained by the definition of capacitance that charge on the capacitor will remain constant irrespective of the voltage applied.

This can be given as:

Q ∝ V or Q = CV

where,

Q = charge

V = Voltage

C = Capacitance

So, when V is doubled, C shoul reduce to half to main constant charge on the capacitor:

V' = 2V

C' =

Also , Energy stored in a capacitor, E is given by:

E =                             (1)

Now, when

V' = 2V

C' =

Using eqn (1):

E' =

Energy, E' =

E' = = 2E

specific latent heat of fusion, lf, of a substance is defined as the amount of heat required to change a unit mass of the substance from solid to liquid state, without any change in the temperature.

explanation:

when cloud cover increases then the suns ray's which provides the earth with light and warmth gets covered due to the due to the suns ray's being blocked, the temperature in that region

therefore to conclude i would like to say that,

=more the cloud cover, the lesser the

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