A parallel-plate capacitor has plates with an area of 430 cm2 and an air-filled gap between the plates that is 2.50 mm thick. The capacitor is charged by a battery to 600 V and then is disconnected from the battery.
a.) How much energy is stored in the capacitor? I did this and got 27.4 micro joules which is corrrect.
b.) The separation between the plates is now increased to 4.50 mm . How much energy is stored in the capacitor now? HELP
A parallel-plate capacitor has plates with an area of 430 cm2 and an air-filled gap between...
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85. A parallel-plate capacitor with plate area 3.0 cm2 and air- gap separation 0.50 mm is connected to a 12-V battery, and fully charged. The battery is then disconnected. (a) What is the charge on the capacitor? (b) The plates are now pulled to a separation of 0.75 mm. What is the charge on the capacitor now? (c) What is the potential difference between the plates now? (d) How much work was required to pull the plates to their new...
A parallel-plate capacitor
with plate area 4.60 cm2 and air-gap separation 0.78 mm is
connected to a 12.00 V battery, and fully charged. The battery is
then disconnected. (a) What is the charge on the capacitor? (b) The
plates are now pulled to a separation of 0.98 mm. What is the
charge on the capacitor now? (c) What is the potential difference
across the plates now? (d) How much work was required to pull the
plates to their new separation?...
The plates of an air-filled parallel-plate capacitor with a plate area of 16.5 cm2 and a separation of 8.80 mm are charged to a 130-V potential difference. After the plates are disconnected from the source, a porcelain dielectric with κ = 6.5 is inserted between the plates of the capacitor. (a) What is the charge on the capacitor before and after the dielectric is inserted? Qi = ___C Qf = ____C (b) What is the capacitance of the capacitor after...
A parallel-plate capacitor with plate area 2.5 cm2 and air-gap separation 0.50 mm is connected to a 12-V battery, and fully charged. The battery is then disconnected. The plates are now pulled to a separation of 0.75 mm. What is the potential difference between the plates now? Express your answer to two significant figures and include the appropriate units. It is asking for Vfinal. I got that the potential difference is 18 V but do not know how to get...