EASY
NEET
IMPORTANT
Earn 100

Name the physical quantity which has its S.I. Unit volt-meter

Important Questions on Electric Charges and Fields

MEDIUM
NEET
IMPORTANT
If F is the magnitude of force experienced by a charge of 2μC at a distance of 1 cm from an infinitely large charged sheet, then what will be the force experienced by the same charge placed at a distance of 2 cm from the same sheet?
EASY
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IMPORTANT
What is the angle between the directions of electric fields due to a dipole, at a point on axial line and a point on equatorial line?
EASY
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IMPORTANT
What is an electric field line ? sketch field lines due to two equal positive charges placed at a small distance in air.
EASY
NEET
IMPORTANT
An electric dipole is free to move in a uniform electric field. Explain its motion when it is placed (i) parallel to the field, and (ii) perpendicular to the field.
MEDIUM
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IMPORTANT

Four point charges are placed at the four corners of a square in two ways (i) and (ii) as shown in figure. Will the electric field at the centre of the squares be the same or different in the two configurations and why ?

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HARD
NEET
IMPORTANT

Three charges are placed on the vertices of an equilateral triangle of side length I. Find the sign and magnitude of charge q placed at centroid so that system of charges will be in equilibrium.

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MEDIUM
NEET
IMPORTANT
Write two basic properties of charge.
HARD
NEET
IMPORTANT
What is the relation between electric field intensity and the force ? What determines the direction of the force in an electric field ?