Test F.Sc Physics 1st year Chapter No.3 and 4. Long Questions

Q.No.3: - Attempt any two                               2   x  5   =  10

(i) Calculate the (a) time of flight (b) height of projectile (c) range of projectile

(ii) Derive the relation of absolute of P.E at the surface of Earth.

(iii) State and explain law of conservation of energy.

(iv) Find the final velocities of balls after an elastic collision.

Test Chapter No.13 current electricity 2nd year F.Sc Long questions

                                                                Long Questions

Q.No.3: -  Explain the following question.  Attempt all  ( Mark 3+3=6 each question)

Q.No.1:- (i) Find the power dissipation in a resistor also give its units.

(ii) How many electron pass through an electric bulb in one minute if the 300mA current is passing through it?

Q.No.2: -(i) State and explain electromotive force and internal resistance of a source of emf. Also calculate the emf for a source of emf. Why potential difference is less than the emf. 

(ii) A charge of 90 C passes through a wire in 1 hour and 15 minutes. What is the current in the wire?