EASY
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The electric field lines diverge from

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Important Questions on Interaction of Charged Particles, Electric Field and Potential

EASY

The electric field lines of a positive charge is as shown in figure:

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Give the sign of work done by the field in moving a small positive charge from 'Q' to 'P'.

EASY
A long cylindrical shell carries positive surface charge σ in the upper half and negative surface charge σ in the lower half. The electric field lines around the cylinder will look like figure given in:

(figures are schematic and not drawn to scale)
EASY
The number of electric field lines emerged out from 1 mC charge is ______. ε=8.85×10-12MKS
MEDIUM
Which statement(s) among the following are incorrect:
(i) A negative test charge experiences a force opposite to the direction of the field.
(ii) The tangent drawn to a line of force represents the direction of electric field.
(iii) The electric field lines never intersect.
(iv) The electric field lines form a closed loop.
EASY

The electric field lines on the left have twice the separation on those on the right as shown in figure. If the magnitude of the field at A is 40 Vm-1, what is  the force on 20 μC charge kept at

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EASY

Figure shows three arrangements of electric field lines. In each arrangement, a proton is released from rest at point A and then accelerated through point B by the electric field. Points A and B have equal separations in the three arrangements. If p1,p2 and p3 are linear momentum of the proton at point B in the three arrangement respectively, then

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MEDIUM

A small point mass carrying some positive charge on it, is released from the edge of a table. There is a uniform electric field in this region in the horizontal direction. Which of the following options then correctly describe the trajectory of the mass ? (Curves are drawn schematically and are not to scale)

MEDIUM
Figure shows electric field lines. If EA and EB are electric fields at A and B, then

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EASY
A metallic shell has a point charge q kept inside its cavity. Which one of the following diagrams correctly represents the electric lines or forces?
HARD
An uncharged sphere of metal is placed in uniform electric field produced by two oppositely charged plates. The lines of force will appear as -
EASY
A metallic solid sphere is placed in a uniform electric field. The lines of force follow the path(s) shown in figure as

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MEDIUM

The negative charge -q2 is fixed while positive charge q1 as well as the conducting sphere ' S ' is free to move (figure). If the system is released from rest -

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