The electric potential at. Point A is 20...

The electric potential at. Point A is 20 V and B is – 20 . The work done by an external force in moving electron slowly from B to A is

`-6.4 xx10^(-18)J`

`+6.4 xx10^(-18)J`

`4xx10^(-20)J`

`-4xx10^(-20)J`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

NTA NEET SET 53
NTA MOCK TESTS|Exercise PHYSICS|45 Videos
NTA NEET SET 55
NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

The electric potential at point A is 20 V and at B is -40 V . Find the work done by an external and electrostatic force in moving an electron slowly from B to A.

A charge Q is placed at the origin. The electric potential due to this charge at a given point in space is v . The work done by an external force in bringing another charge q from infinity up to the point is

The potential at a point A is – 500 V and that at another point B is + 500 V. What is the work done by external agent to take 2 units (S.I.) of negative charge from B to A.

The electrical potential at point in an electric field is 6 V. Find the work done in bringing 12 C of charge from infinity to that point.

A force F acting on an object varies with distance x as shown in the figure. The work done by the force in moving the object from x=0 to x = 20 m is

Which of the following statement(s) is/are correct? If the electric field due to a point charge varies as r^(-2.5) instead of r^(-2),then the Gauss law will still be valid. The Gauss law can be used to calculate the field distribution around an electric dipole. If he electric field between two point charges is zero somewhere,then the sign of the two charges is the same. The work done by the external force is moving a unit positive charge from point A at potential "V_(A)" to point B at potential "V_(B)" is,(V_(B)-V_(A))

1 mu C charge is shifted from A to B, and it is found that work done by an external force is 40 mu J . In doing so against electrostatic forces, find potential difference V_A - V_B .

NTA MOCK TESTS-NTA NEET SET 54-PHYSICS

An inductor coil stores 32 J of magnetic field energy and dissiopates ...
Text Solution
|
A circular ring of radius R and uniform linear charge density +lamdaC/...
Text Solution
|
The electric potential at. Point A is 20 V and B is – 20 . The work do...
Text Solution
|
A charged particle moves through a magnetic field perpendicular to its...
Text Solution
|
A charged particle enters a uniform magnetic field with velocity vecto...
Text Solution
|
A conductor of length L is placed along the x - axis , with one of its...
Text Solution
|
A diatomic ideal gas undergoes a thermodynamic change according to the...
Text Solution
|
A cyclic process ABCA is shown in the V - T diagram . Process on the P...
Text Solution
|
Six moles of an ideal gas performs a cycle shown in figure. If the tem...
Text Solution
|
A metal ball immersed in water weighs w(1) at 0^(@)C and w(2) at 50^(@...
Text Solution
|
If there is no heat loss, the heat released by the condensation of x g...
Text Solution
|
Both strings shown in figure, are made of same material and have same ...
Text Solution
|
The motion of a Particle moving along then y- axis is represented as y...
Text Solution
|
A particle is projected with speed 20m s^(-1) at an angle 30^@ With h...
Text Solution
|
A particle is projected along the line of greatest slope up a rough pl...
Text Solution
|
A 1.0 kg ball drops vertically into a floor from a height of 25 cm . I...
Text Solution
|
An object comprises of a uniform ring of radius R and its uniform chor...
Text Solution
|
A man of mass 80 kg is riding on a small cart of mass 40 kg which is r...
Text Solution
|
A ball moving on a horizontal frictionless plane hits an identical bal...
Text Solution
|
Keeping the banking angle same , to increase the maximum speed with wh...
Text Solution
|