Work done to carry a charge q once along...

Work done to carry a charge q once along the circular path of radius r with charge q' at its centre, will be

`(qQ)/(4pi in_(0)r)`

`(qQ)/(4pi in_(0))(1)/(pi r)`

`(qQ)/(4pi in_(0))((1)/(2pi r))`

Text Solution

Verified by Experts

Topper's Solved these Questions

QUESTION PAPER 2008
WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS|38 Videos
QUESTION PAPER 2010
WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

A charge q is revolving along a circular path of radius r with velocity v . Determine its magnetic moment .

An electron (charge =-e ) is revolving around a nucleus along a circular path of radius r with frequency f . What will be the magnetic moment of the electron due to its orbital motion ?

A charge of 100 esu is placed at a point. What will be the amount of work done (ii) To carry a unit positive charge once, along a circle of radius 10 cm around the given charge? Answer with reasons.

An electric current i enters and leaves a uniform circular wire of radius a through diametrically opposite points. A particle carrying a charge q moves along the axis of the circular wire with speed v. What is the magnetic force experienced by the particle when it passes through the centre of the circle ?

A particle is moving with a uniform speed v in a circular path of radius r with the centre at O. When the particle moves from a point P to Q on the circle such that anglePOQ= theta , then the magnitude of the change in velocity is

Find the electric field and potential at the centre of curvature of a uniformly charged semicircular rod of radius R with a total charge Q in SI. lambda is the linear charge density.

The work done to move a charge along an equipotential from A to B

A charged particle enters a magnetic field vec(B) perpendicularly with velocity v and keeps rotating along a circular path of radius r. What will happen if the magnitude of vec(B) is increased?

WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2009-Multiple Choice Questions (Physics)

Two identical light waves, propagating in the same direction, have a p...
Text Solution
|
The equation of state for n moles of an ideal gas is PV= nRT, where R ...
Text Solution
|
At a certain place, the horizontal component of earth's magnetic field...
Text Solution
|
The number of electrons in 2coulomb of charge is
Text Solution
|
The current flowing through a wire depends on time as I= 3t^(2)+ 2t + ...
Text Solution
|
If the charge on a capacitor is increased by 2 coulomb, the energy sto...
Text Solution
|
Work done to carry a charge q once along the circular path of radius r...
Text Solution
|
Four capacitors of equal capacitance have an equivalent capacitance C(...
Text Solution
|
Magnetic field intensity H at the centre of a circular loop of radius ...
Text Solution
|
Which of the following materials is the best conductor of electricity?
Text Solution
|
One Kg of copper is drawn into a wire of 1mm diameter and a wire of 2m...
Text Solution
|
An electrical cable having a resistance of 0.2Omega delivers 10kw at 2...
Text Solution
|
A wire of resistance 5Omega is drawn out so that its new length is 3 t...
Text Solution
|
Two identical cells each of emf E and internal resistance r are connec...
Text Solution
|
To write the decimal number 37 in binary, how many binary digits are r...
Text Solution
|
A junction diode has a resistance of 25Omega when forward biased and 2...
Text Solution
|
If the electron in a hydrogen atom jumps from an orbit with level n(1)...
Text Solution
|
What is the particle x in the following nuclear reaction: ""(4)^(9)Be ...
Text Solution
|
An alternating current of rms value 10A is passed through a 12Omega re...
Text Solution
|
Which of the following relation represent Biot-Savart's law?
Text Solution
|