Two identical air-filled parallel-plate capacitors C1 and C2, each with capacitance C, are connected in series to a battery that has voltage V. While the two capacitors remain connected to the battery, a dielectric with dielectric constant K>1 is inserted between the plates of one of the capacitors, completely filling the space between them. Let U0 be the total energy stored in the two capacitors without the dielectric and U be the total energy stored after the dielectric is inserted.
a) What is the ratio U/U0?
b) Does the total stored energy increase, decrease, or stay the same after the dielectric is inserted?
Answers: 3
Physics, 22.06.2019 16:00
Which composition of water moves to begin a deepwater current?
Answers: 2
Physics, 22.06.2019 16:50
Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.
Answers: 2
Physics, 22.06.2019 21:10
The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.
Answers: 1
Two identical air-filled parallel-plate capacitors C1 and C2, each with capacitance C, are connected...
Geography, 26.01.2021 01:10
Mathematics, 26.01.2021 01:10
Mathematics, 26.01.2021 01:10
Mathematics, 26.01.2021 01:10
Chemistry, 26.01.2021 01:10
Mathematics, 26.01.2021 01:10
Chemistry, 26.01.2021 01:10
Mathematics, 26.01.2021 01:10
History, 26.01.2021 01:10
Biology, 26.01.2021 01:10
Mathematics, 26.01.2021 01:10
Mathematics, 26.01.2021 01:10
Mathematics, 26.01.2021 01:10
Mathematics, 26.01.2021 01:10
Mathematics, 26.01.2021 01:10
Mathematics, 26.01.2021 01:10
Mathematics, 26.01.2021 01:10