Capacitors connected in parallel

AI Thread Summary
When capacitors C1 and C2 are connected in parallel and a potential difference is applied, the equivalent capacitor has the same potential difference. The charge on the equivalent capacitor equals the sum of the charges on C1 and C2. This is based on the definition of capacitance and the principle of charge conservation. Understanding these concepts clarifies the relationship between the charges in parallel configurations. The discussion emphasizes the importance of grasping capacitance definitions to solve related problems effectively.
nautica
Capacitor C1 and C2 are connected in parallel and a potential difference is applied to the combination. If the capacitor that is equilvalent to the combination has the same potential difference, then the charge on the equivalent capacitor is the same as?

a) the charge on C1
b) the sum of the charges on C1 and C2
c) the difference of the charges on C1 and C2
d) the product of the charges on C1 and C2
e) none of above

I got lost in the wording on this one.

nautica
 
Physics news on Phys.org
Let's see if I can walk you through this.

Give me an equation that expresses the definition of capacitance...

Next, what is the "formula" for CEQ when several capacitors C1, C2, C3 ... are connected in parallel?
 
Last edited:
The sum of the charges on C1 and C2

thanks
nautica
 
First ask yourself, "what is the definition of capacitance?" That should probably give you a huge hint. The next hint would be charge conservation.
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
Back
Top