# 12th Physics Unit 1 Electrostatics Chapter Wise Past Papers

12th Physics unit 1 electrostatics solved MCQs from past papers. Fsc 2nd year Physics all Punjab Boards MCQs. Lahore Board MCQs, Gujranwala Board, and Faisalabad Board. Multan Board, Rawalpindi Board, Bahawalpur Board. Chapter-wise past papers MCQs are from both 1st group and 2nd group Physics paper.

## 12th Physics Unit 1 Past Papers MCQs:

Sample MCQs Physics Chapter 1 from Past Papers

Selenium is:
(A) Insulator in light
B Insulator in dark
(C) conductor in dark
(D) semiconductor in dark

The drum in photo copier is coated with layer of: (MLN. GII, RWP. GII, 2017)
(A) Aluminium
(B) Copper
C) Selenium
(D) Silver

The Constant of proportionality “k” depend upon: (BWP. GI, 2016)
(A) Nature of medium between two charges
(B) The system of units
(C) Nature of Bodies

D) Nature of medium between two charges and system of units
Total flux through a closed surface depends on: (BWP. GI, 2015)
(A) Shape of surface
B Charge enclosed only
(C) Medium only
(D) Charge and Medium

Two charges luC and 5uC separated by 20 cm, the ratio of electoral forces acting on them
will be: (LHR. GII, 2016)
(A) 1:2
(B) 1:5
C) 1:1
(D) 5:1

Gauss’s Law can only be applied to: (SWL. GI, 2014)
(A) A curved surface
(B) A flat surface
(C) A surface of any shape
D) A closed surface

### Electrostatics Past Papers MCQs

Electric intensity inside the hollow sphere is: (GRW. GI, 2015) (GRW.2018)
(D) zero

Which one is photo conductor? (LHR. GI, 2017)
(A) Copper
(B) Selenium
(C) Mercury
(D) Aluminium

The photo copying process is called: (SGD. GII, 2017)
(A) Photography
(B) Scanning
C) Xerography
(D) Holography

Two opposite point charge of same magnitude separated by distance 2d, electric potential
mid way between them is: (LHR. GII, 2015) (AJK. 2018)
(A) I V
(B) 2 V
(C) Zero
(D) V/2

Charge carriers in electrolytes are: (SWL. GI, 2014)
(A) Protons
(B) Electrons
(C) Holes
(D) Positive and Negative ions

A capacitor is perfect insulator for: (DGR. GI, 2017)
(A) Alternating current
(B) Sparking current
(C) Eddy current
(D) Direct current

The work done is bringing a unit positive charge from infinity to that point in an electric
field is called: (AJK. GI, 2015)
(A) Potential
(B) Potential difference
(C) Absolute potential
(D) All of these

Selenium is a: (MLN. GI, 2015) (RWP. GI, 2016)
(A) Conductor
(B) Photo conductor
(C) Insulator
(D) Semi conductor

Special organs called ampullae of lorenzini are present in: (GRW. GII, SGD, GII, 2016)
(A) Bats
(B) Cats
(C) Dogs
(D) Sharks

If charged body is moved against the electric field, it will gain: (LHR. GI, 2016)
(A) P.E
(B) K.E
(C) Mechanical energy
(D) Electrical potential energy

One electron volt is equal to: (SGD. GI, 2016)
(A) 16×10-” Joule
(B) 1.6*10-19 Coulomb
(C)N
(D) 1.6×1018 Joule