### Breaking News # Electrostatic Online Mcqs

Physics Ch-12
MCQ's marks 30
Time allowed 40 mint
Punjab college Shakargarh
* Required
Section Name *
1. The product of charge and potential difference is *
1 point
flux
current
energy
power
2. The potential is constant through a region of space. Its Electric field is equal to. *
1 point
negative
positive
zero
infinite
3. Gravitational force as compared to electrostatic force is *
1 point
very large
large
very small
equal
4. A charge of 10 C is accelerated through a potential difference of 100 V, it *
1 point
10 J
100 J
1000 J
10000 J
5. Charge on electron was determined by. *
1 point
Ampere
Maxwell
Milikon
Thomson
6. Unit of capacitance is *
1 point
Coulomb per volt
Volt per meter
Coulomb
Ohm
7. The graph of charging or discharging of a capacitor is *
1 point
Linear
Exponential
Parabolic
Hyperbolic
8. The equivalent capacitance is greater than individual capacitance in *
1 point
Series combination
Parallel combination
In both combination
Neither a nor b
9. When dielectric material is inserted between plates of capacitor, charge on plates *
1 point
Increases
Decreases
May increase or decrease
Remains constant
10. If the potential difference across two plates of charged capacitor is doubled then energy stored in it will be *
1 point
Two times
Eight times
Four times
Remains same
11. In a charged capacitor, the energy resides in *
1 point
The negative plates
Positive plate
The field b/w the plates
Both positive and negative plates
12. 1 Ohm x 1 Farad is equal to *
1 point
1 ampere
1 coulomb
1 second
1 joule
13. The electric intensity outside the two oppositely charged metal plates is *
1 point
Zero
Maximum
Minimum
Infinite
14. Gauss's law can only be applied to *
1 point
A curved surface
A flat surface
A surface of any shape
A closed surface
15. Electron volt is the unit of *
1 point
Potential
Charge
Electric potential energy
None of these
16. If time constant in RC circuit is small, the capacitor is charged or discharged *
1 point
Rapidly
Slowly
At constant rate
Intermediate
17. Electric flux through a closed surface depends upon *
1 point
Shape of the surface
Medium
Charge enclosed
Medium and charge enclosed
18. If the electric field lines are equally spaced the electric field is *
1 point
Uniform
Non uniform
Weak
Strong
19. ECG term is used for *
1 point
Eye
Heart
Brain
None of them
20. N/C is equal to *
1 point
Volt / meter
Volt / second
Volt / coulomb
None of them
21. The electric potential at a mid point in an electric dipole is *
1 point
0 Volt
0.5 Volt
1 Volt
1.5 Volt
22. If the separation between the plates of a capacitor is doubled then its capacitance become *
1 point
Double
Half
One fourth
Three times
23. A capacitor is perfect insulator for *
1 point
A.C
D.C
both a and b
none of these
24. The value of electric flux is maximum, when angle between electric field and vector area is *
1 point
90 degree
0 degree
30 degree
60 degree
25. A particle carrying charge 2e falls through a potential difference of 5 volt. Energy acquired by it will be *
1 point
2.5 eV
20 eV
0.4 eV
10 eV
26. Energy stored in a capacitor is directly related to to *
1 point
Electric field
Electric flux
Square of electric field
Square root of electric field
27. Electric field intensity inside a hollow charge sphere is *
1 point
Zero
Negative
positive
Cannot say
28. Electric field between two like charges is *
1 point
Uniform
Zero
positive
None of them
29. In Milikon oil drop experiment a charged particle of mass m is in equilibrium in an applied electric field. If the direction of electric field is reversed then acceleration of particle will be *
1 point
Zero
g/2
g
2g
30. If medium is included, value of flux will
1 point
Increase
Decrease
Remains constant
None of them.

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