If the Area of the Plates of a Parallel Plate

question 52

Multiple Choice

If the area of the plates of a parallel plate capacitor is halved and the separation between the plates tripled,while the charge on the capacitor remains constant,then by what factor does the energy stored in the capacitor change?

• A)increase by a factor of 2
• B)decrease by a factor of 2/3
• C)increase by a factor of 6
• D)increase by a factor of 3/2
• E)decrease by a factor of 1/6

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Definitions:

Modified Duration

Modified Duration measures the sensitivity of the price of a bond or other debt instrument to a change in interest rates, indicating the percentage change in price for a parallel shift in rates.

Modified Duration

A measure of the sensitivity of a bond's or bond portfolio's price to changes in interest rates, adjusting for the changing yield to maturity.

Market Yield

The current yield of a bond or other fixed-income security, calculated by dividing the annual interest income by the current market price.

Par-Value

The face value of a bond or stock as stated by the issuer, which is typically the amount repaid at maturity for bonds.