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Friday, 12 April 2013

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?

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