Calculate the Capacitance given the Charge and Potential Difference

AI Thread Summary
To calculate capacitance, divide the charge in coulombs by the potential difference in volts. The formula for capacitance is C = Q/V, where C is capacitance, Q is charge, and V is voltage. For conversion to picofarads, multiply the result by 10^-12. This method is correct for determining capacitance based on the given charge and potential difference. Proper application of this formula will yield accurate capacitance values.
member 757689
Homework Statement
Find capacitance between two objects; one with charge +30 nC the other with charge -30 nC. Potential difference is 500 V.
Relevant Equations
C = Q/V
Hello, I would like some help on a homework problem. I would think that capacitance would simply be the positive charge's value in C divided by the deltaV value then multiplied by 10^-12 for pF conversion. Does this look like the right approach?
 
Last edited by a moderator:
Physics news on Phys.org
boostlover123 said:
Hello, I would like some help on a homework problem. I would think that capacitance would simply be the positive charge's value in C divided by the deltaV value then multiplied by 10^-12 for pF conversion. Does this look like the right approach?
Yes, it does.
 
Thread 'Minimum mass of a block'

Thread 'Minimum mass of a block'

Here we know that if block B is going to move up or just be at the verge of moving up ##Mg \sin \theta ## will act downwards and maximum static friction will act downwards ## \mu Mg \cos \theta ## Now what im confused by is how will we know " how quickly" block B reaches its maximum static friction value without any numbers, the suggested solution says that when block A is at its maximum extension, then block B will start to move up but with a certain set of values couldn't block A reach...
View full post »

Thread 'Electric field due to charges between 2 parallel infinite planes'

TL;DR Summary: Find Electric field due to charges between 2 parallel infinite planes using Gauss law at any point Here's the diagram. We have a uniform p (rho) density of charges between 2 infinite planes in the cartesian coordinates system. I used a cube of thickness a that spans from z=-a/2 to z=a/2 as a Gaussian surface, each side of the cube has area A. I know that the field depends only on z since there is translational invariance in x and y directions because the planes are...
View full post »
Thread 'Calculation of Tensile Forces in Piston-Type Water-Lifting Devices at Elevated Locations'

Thread 'Calculation of Tensile Forces in Piston-Type Water-Lifting Devices at Elevated Locations'

Figure 1 Overall Structure Diagram Figure 2: Top view of the piston when it is cylindrical A circular opening is created at a height of 5 meters above the water surface. Inside this opening is a sleeve-type piston with a cross-sectional area of 1 square meter. The piston is pulled to the right at a constant speed. The pulling force is（Figure 2）： F = ρshg = 1000 × 1 × 5 × 10 = 50,000 N. Figure 3: Modifying the structure to incorporate a fixed internal piston When I modify the piston...
View full post »

Similar threads

Find the electric field between 2 finite discs
Replies
16
Views
1K
What would happen to the charge and capacitance?
Replies
9
Views
2K
Charge on a grounded conducting sphere in a uniform electric field, after ungrounding and movement
Replies
1
Views
1K
How Do You Calculate the Capacitance of a Sphere Using Only Charge or Potential?
Replies
4
Views
2K
Point charge with very thin metal sheet along a spherical surface
Replies
21
Views
2K
Finding the energy density outside of an isolated charged sphere
Replies
3
Views
3K
How capacitance, charge, and energy stored changes on a capacitor?
Replies
10
Views
5K
Charge of 2 conducting spheres separated by a distance
Replies
1
Views
2K
Capacitor Questions Charging and Discharging
Replies
4
Views
3K
Calculating Capacitance in Closed Loop Circuits
Replies
1
Views
1K

Hot Threads

Recent Insights

Back
Top