2nd Year Physics | Electrostatics | Quiz Version-1

• 2nd Year Physics | Electrostatics | Quiz Version-1.
• This quiz is from Physics FSc ICS Part-II | 2nd Year, Chapter No.12: Electrostatics.

• We tried our best to make/select maximum Multiple Choice Questions (MCQs) in this chapter.

• By attempting this online quiz | MCQs, you can improve, examine, prepare yourselves for final exams and ECAT, MDCAT, and all other entry tests for admission. 

• This quiz is version-1 of this chapter, the remaining questions of this chapter (Electrostatics) will be published soon.

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FSc Part-II | Physics | Chapter No.12: Electrostatics | Quiz Version-1

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1. Electrostatic force of repulsion b/w two electrons at 1 meter is:
   1.   \(1 N\)
   2.   \(2.30\times10^{-28} N\)
   3.   \(9\times10^{9} N\)
   4.   \(1.44\times10^{-9} N\)
2. Minimum charge on any electron be less than:
   1.   \(9.1\times10^{-19}C\)
   2.   \(3.2\times10^{-19}C\)
   3.   \(1.6\times10^{-19}C\)
   4.   \(1.8\times10^{-19}C\)
3. No. of electrons in one coulomb charge is equal to_____ electrons:
   1.   \(6.2\times10^{18}\)
   2.   Zero
   3.   \(1.6\times10^{-22}\)
   4.   \(6.2\times10^{21}\)
4. SI unit of charge is:
   1.   Ampere
   2.   Coulomb
   3.   Joule
   4.   Calorie
5. Which of the following statement is correct:
   1.   Similar charges attract each other
   2.   Similar charges repel each other
   3.   Similar charges attract and repel each other
   4.   Similar charges neither attract nor repel
6. Force in medium of relative permittivity \(\epsilon_{r}\) is given by:
   1.   \(\acute{F}={\epsilon_r}.{F}\)
   2.   \(\acute{F}=\frac{F}{\epsilon_o\epsilon_r}\)
   3.   \(\acute{F}=\frac{F}{\epsilon_r}\)
   4.   \(\acute{F}=\frac{\epsilon_r}{F}\)
7. Value of K depends upon:
   1.   Charges
   2.   Nature of medium
   3.   Distance b/w charges
   4.   System of units and medium
8. What is standard to measure relative permittivity:
   1.   Vacuum
   2.   Atmosphere
   3.   Water
   4.   Air
9. Free electrons are:
   1.   Strongly fixed
   2.   Tightly bound
   3.   Fixed
   4.   Loosely bounded
10. Branch of physics which deals with charges at rest:
    1.   Nuclear physics
    2.   Electrostatic
    3.   Current electricity
    4.   Electromagnetism
11. A substance contains:
    1.   Only +ve charge
    2.   None of them
    3.   Only -ve charge
    4.   Both +ve & -ve charge
12. Value of permittivity of free space:
    1.   \(8.85\times10^{-11}Nm^{2}/C^{2}\)
    2.   \(8.85\times10^{-12}C^{2}m^{2}/N\)
    3.   \(8.85\times10^{-12}C^{2}/Nm^{2}\)
    4.   \(8.85\times10^{-12}Nm^{2}/C\)
13. SI units of permittivity are:
    1.   \(C^{2}/N.m^2\)
    2.   \(N.m^2/C^{2}\)
    3.   \(N.m/C^{2}\)
    4.   \(N.m/C\)
14. The Coulomb force is:
    1.   \(F=K\frac{q_{1}{q_{2}}}{r^2}\)
    2.   \(F=K\frac{q_{1}{q_{2}}}{r}\)
    3.   \(F=K\frac{q_{1}{r^{2}}}{q_2}\)
    4.   \(F=K\frac{q_{1}{q_{2}}}{r^3}\)
15. Metals are good conductors of electricity because they have:
    1.   Small no. of electrons
    2.   Small no. of free electrons
    3.   Large no. of free electrons
    4.   Large no. of bounded electrons
16. Charge of 10 µC and 14.4 µC are 12cm apart, force b/w them is:
    1.   \(9\times10^{5}N\)
    2.   \(108\times10^{7}N\)
    3.   \(9\times10^{7}N\)
    4.   \(90 N\)
17. When current of one ampere is flowing across any cross-section of wire in one second, then quantity of charge is said to be:
    1.   None of them
    2.   1 coulomb
    3.   1 micro-coulomb
    4.   3 coulomb
18. Value of K in SI system of units:
    1.   \(9\times10^{9} NC/m^{2}\)
    2.   \(9\times10^{9} Nm^{2}/c^{2}\)
    3.   \(9\times10^{-9} Nm^{2}/c^{2}\)
    4.   \(9\times10^{10} Nm^{2}/c^{2}\)
19. If distance b/w two charge bodies is halved, force b/w them becomes:
    1.   One fourth
    2.   Half
    3.   Doubled
    4.   Four time
20. When medium is insulator, the electrostatic force b/w charges is:
    1.   Increased
    2.   Zero
    3.   None of these
    4.   Decreased