Physics first year past paper lahore board important questions 2016

Academy  For  Excellence  Chung Lahore

                   Test –physics                                                     Total no # 20

Choose the correct answer from the followings

1.       SI  unit of electric intensity is

(a)         Nm^-1       (b) NC^-1       (c) Nm^-2      (d) Nm

2.           The ability of the capacitor to store charge;

(a)         potential    (b) capacitance   (c) momentum    (d)  voltage

3.           what is remain constant in parallel combination of capacitors

(a)     Q       (b)     V        (c)     C       (d)  Any one

4.            Capacitance is define as 

(a)         VC  (b)   Q/V   (c)     QV (d)      V/Q

5.            Five joules of work is needed to shift 10 C of charge from one place to another. The potential difference between the places is 

(a)         0.5V     (b)            2V       (c)        5V          (d) 10V

Short Questions:

1.   Define Electrostatic Induction.

2.   Write the conditions where Coulomb’s Law applies.

3.   What are electric field lines?

4.       Describe electrolytic capacitor.

Long Questions:

a.    What is Electroscope? How Electroscope charge by electrostatic induction?

b.    Two charges repel each other with a force of 0.1 N when they are 5 m apart. Find the force between the same charges when they are 2 cm apart?