# PHYSICS : ELECTROSTATICS Online Test

Two point charges +q and q are held fixed at (d, o) and (d, o) respectively of a x-y coordinate system. Then
The electric field E at all points on the x-axis has the same direction
Electric field at all points on y-axis
Work has to be done in bringing a test charge from ( to the origin
The dipole moment is 2 qd along the x-axis
Two equal point charges are fixed at x = -a and x= +a on the x-axis. Another point charge Q is placed at the origin. The change in the electrical potential energy of Q, when it is displaced by a small distance x along the x-axis, is approximately proportional to
x
X2
X3
I/x
A uniform electric field pointing in positive x-direction exists in a region. Let A be the origin. B be the point on the x-axis at x= +1 cm and C be the point on the y-axis at y=+1 cm. Then the potentials at the points A. B and C satisfy.
VA < VB
VA > VB
VA < VC
VA > VC
Two identical metal plates are given positive charges Q1 and Q2 ( (Q1+Q2)/(2C)
(Q1+Q2)/C
(Q1-Q2)/C
(Q1-Q2)/(2C)
An electron of mass me, initially at rest, moves through a certain distance in a uniform electric field in time t1 A proton of mass mp, also, initially at rest, takes time t2 to move through an equal distance in this uniform electric field. Neglecting the effect of gravity. The ratio t2/t1 is nearly equal to
I
(mp/ me)1/2
(me/ mp)1/2
1836
A parallel plate capacitor has a plate separation of 0.01 mm and uses a dielectric (whose dielectric strength is 19 KV/mm) as an insulator. The maximum potential difference that can be applied to the terminals of the capacitor is ____.
190 V
290 V
95 V
350 V
/
6
8
10
12
/
Nothing can be said
A metallic sheet is inserted between the plates of a parallel plate capacitor. The capacitance of the capacitor ____.
increases
is dependent of the position of the sheet
is maximum when the metal sheet in the middle
is maximum when the metal sheet touches one of the capacitor plates
/
Description:

The test contains question on potential , capacitors with o wihout dielecrtrics

Discussion

thanks a lot ..if only possible can u prepare googd questions on charging amd discharging of capacitors and equivalent resistances usins kvl symmetry etc

4326 days 9 hours 7 minutes ago

Kajal Sengupta
Physics 9th to 12 th grade,CIE, Edexcel, AP, IB , CBSE, ICSE 87 Members Recommend
880 Followers

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