MCQExams
0:0:1
CBSE
JEE
NTSE
NEET
Practice
Homework
×
JEE Questions for Physics Electrostatics Ii Quiz 5 - MCQExams.com
JEE
Physics
Electrostatics Ii
Quiz 5
Two identical balls having like charges and placed at a certain distance apart repel each other with a certain force. They are brought in contact and then moved apart to a distance equal to half their initial separation. The force of repulsion between them increases 4.5 times in comparison with the initial value. The ratio of the initial charges of the balls is........
Report Question
0%
4 : 1
0%
6 : 1
0%
3 : 1
0%
2 : 1
A point charge q is situated at a distance r from one end of a thin conducting rod of length L having a charge Q (uniformly distributed along its length). The magnitude of electric force between the two, is ...............
Report Question
0%
0%
2)
0%
0%
Two point charges of +16c and –9c are placed 8 cm apart in air. ............... distance of a point from –9c charge at which the resultant electric field is zero.
Report Question
0%
24 cm
0%
9 cm
0%
16 cm
0%
35 cm
Report Question
0%
0%
2)
0%
0%
An inclined plane making an angle of 30
o
with the horizontal is placed in an uniform electric field E = 100 Vm
–1
A particle of mass 1 kg and charge 0.01 c is allowed to slide down from rest from a height of 1m. If the coefficient of friction is 0.2 the time taken by the particle to reach the bottom is .......... sec.
Report Question
0%
2.337
0%
4.337
0%
5
0%
1.337
Report Question
0%
41.8o
0%
45o
0%
40.8o
0%
45.8o
A Semicircular rod is charged uniformly with a total charge Q coulomb. The electric field intensity at the centre of curvature is .......
Report Question
0%
0%
2)
0%
0%
The electron is projected from a distance d and with initial velocity ν
o
parallel to a uniformly charged flat conducting plate as shown in figure. It strikes the plate after travelling a distance
l
along the direction. The surface charge density of conducting plate is equal to
Report Question
0%
0%
2)
0%
0%
Two point masses m each carrying charge –q and +q are attached to the ends of a massless rigid non-conducting rod of length l. The arrangement is placed in a uniform electric field E such that the rod makes a small angle 5
o
with the field direction. The minimum time needed by the rod to align itself along the field is ........
Report Question
0%
0%
2)
0%
0%
Two uniformely charged spherical conductors A and B having radius 1mm and 2mm are separated by a distance of 5 cm. If the spheres are connected by a conducting wire then in equilibrium condition, the ratio of the magnitude of the electric fields at the surfaces of spheres A and B is .........
Report Question
0%
4 : 1
0%
1 : 2
0%
2 : 1
0%
1 : 4
Report Question
0%
0%
2)
0%
0%
0
Two point charges q
1
= 2 c and q
2
= 1 c are placed at distance b = 1cm and a = 2 cm from the origin on the y and x axes as shown in figure. The electric field vector at point P (a, b) will subtend an angle θ with the X – axis given by,
Report Question
0%
0%
2)
0%
0%
A simple pendulum consists of a small sphere of mass m suspended by a thread of length l. The sphere carries a positive charge q. The pendulum is placed in a uniform electric field of strength E directed Vertically upwards. If the electrostatic force acting on the sphere is less than gravitational force the period of pendulum is
Report Question
0%
0%
2)
0%
0%
Report Question
0%
0%
2)
0%
0%
0
In Millikan’s oil drop experiment an oil drop carrying a charge Q is held stationary by a p.d. 2400 v between the plates. To keep a drop of half the radius stationary the potential difference had to be made 600 v. What is the charge on the second drop ?
Report Question
0%
0%
2)
0%
0%
Equal charges q are placed at the vertices A and B of an equilateral triangle ABC of side a. The magnitude of electric field at the point c is .........
Report Question
0%
0%
2)
0%
0%
Report Question
0%
0%
2)
0%
0%
Report Question
0%
100 m
0%
50 m
0%
200 m
0%
0 m
If electron in ground state of H-atom is assumed in rest then dipole moment of electron proton system of H-atom is ............... . Orbit radius of H atom in ground state is 0.56 Å
Report Question
0%
0%
2)
0%
0%
At what angle θ a point P must be located from dipole axis so that the electric field intensity at the point is perpendicular to the dipole axis ?
Report Question
0%
0%
2)
0%
0%
Report Question
0%
0%
2)
0%
0%
Report Question
0%
1
0%
2
0%
3
0%
4
Explanation
Theory related question.
Report Question
0%
0%
2)
0%
0%
A Charge q is placed at the centre of the open end of cylindrical vessel. The flux of the electric field through the surface of the vessel is ...........
Report Question
0%
0%
2)
0%
0%
Zero
Explanation
Theory related question.
Report Question
0%
0%
2)
0%
0%
A sphere of radius R has a uniform distribution of electric charge in its volume. At a distance x from its centre, (for x < R), the electric field is directly proportional to ..........
Report Question
0%
0%
2)
0%
0%
Report Question
0%
0%
2)
0%
0%
A hollow cylinder has a charge q coulomb within it. If ϕ is the electric flux in units of voltmeter associated with the curved surface B, the flux linked with the plane surface A in units of volt-meter will be .............
Report Question
0%
0%
2)
0%
0%
Report Question
0%
0%
2)
0%
0%
Two points are at distances a and b (a < b) from a long string of charge per unit length λ. The potential difference between the points in proportional to .............
Report Question
0%
0%
2)
0%
0%
0:0:1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
Answered
0
Not Answered
0
Not Visited
Correct : 0
Incorrect : 0
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Practice Physics Quiz Questions and Answers
<
>
Support mcqexams.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page