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jennaranelli05
31.08.2019 •
Physics
Aparallel plate capacitor with capacitance c is connected to a power supply av, acquiring a charge on its plates. while it is still connected to the power supply, the plate separation is doubled and a dielectric of constant k = 4.20 is inserted into the gap. what is the new charge on the plates in the final state? a) q=0.4769 b) q=2.109 c) q=4.20g d)
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Ответ:
b)![{{Q}'}=2.1Q](/tpl/images/0213/8940/de806.png)
Explanation:
Given that
The power source still connects it means that the voltage difference will be same in above both condition
As we know that
Or we can say that
Where d is the distance between two plates ,A is the area.
When K=4.2 and distance become double
Now from equation 1 and 2
So
Ответ:
you got to study
Explanation: