A point charge Q creates an electric potential of +180 V at a distance of 25...

Question

Question

A point charge Q creates an electric potential of +180 V at a distance of 25 cm . What is Q?

Answer 1

Answer #1

r = 25 cm = 0.25 m

Potential due to point charge, V = kq/r

180 = ( 9x 10^9 x q ) / (0.25 )

q = 5 x 10^-9 C

Answer 2

Similar Homework Help Questions

A point charge Q creates an electric potential of +130 V at a distance of 25...

A point charge Q creates an electric potential of +130 V at a distance of 25 cm . What is Q?
A charge Q creates an electric potential of +118.0 V at a distance of 13.5 cm....

A charge Q creates an electric potential of +118.0 V at a distance of 13.5 cm. What is Q in Coulombs?
An object with charge, q, creates a potential, V, at a point in space. What is...

An object with charge, q, creates a potential, V, at a point in space. What is the distance between the charge and the point in space?

An object with charge, q, creates a potential, V, at a point in space. What is...

An object with charge, q, creates a potential, V, at a point in space. What is the distance between the charge and the point in space?
The electric potential a distance r from a point charge q is 2.90×104 V . One...

The electric potential a distance r from a point charge q is 2.90×104 V . One meter farther away from the charge the potential is 6300 V . Part A Find the initial distance r. r r = m Part B Find the charge q. q q = μC
Question At distance r from a point charge q, the electric potential is 910 V and...

Question At distance r from a point charge q, the electric potential is 910 V and the magnitude of the electric field is 86 N/C. Determine the value of q. The Coulomb constant is 8.98755 x 10 N m2/C Answer in units of C

Part A What potential difference is needed to give a helium nucleus (Q=2e) 50.0 keV of...

Part A What potential difference is needed to give a helium nucleus (Q=2e) 50.0 keV of kinetic energy? A point charge Q creates an electric potential of +125 V at a distance of 20 cm Part B A point charge Q creates an electric potential of +125 V at a distance of 20 cm . What is Q? Express your answer using two significant figures.
An object with charge, q, creates an electric field, E, at a point in space. What...

An object with charge, q, creates an electric field, E, at a point in space. What is the distance between the charge and the point in space?
23.28:At a certain distance from a point charge, the potential and electric field magnitude due to...

23.28:At a certain distance from a point charge, the potential and electric field magnitude due to that charge are 4.98 V and 12.0 V/m, respectively. (Take the potential to be zero at infinity.) 1.What is the distance to the point charge? (d= ? m) 2.What is the magnitude of the charge? (q= ? c)

The electric potential at point A is + 940 V and the electric potential at point...

The electric potential at point A is + 940 V and the electric potential at point B is + 490 V . A positive point charge q = 7.75 mC (millicoulombs) moves from point A to point B. The only force on the charge is the electric force. Part A - If the kinetic energy of q is 7.50 J when it is at point A, what is its kinetic energy when it is at point B? 3.49 J 4.01...