Question
Fri July 29, 2011 By: Hardik Gupta
 

Please help me with the following questions:- 1.state the condition in which the terminal voltage across a secondary cell is equal is equal to emf? 2.Assuming that electrons are free inside the solid, sketch graphically the distribution n(v) of electron with velocity v. 3.A potential difference v is applied across a conductor of length L and diameter D.How are the electric field E and the resistance R of the conductor effected when in turn: (1)v is halved, (2)L is doubled, (2) Dis doubled? justify your answers in each case.

Expert Reply
Mon August 01, 2011
Please post one query at a time.

The terminal voltage across a secondary cell is equal to its e.m.f. when no current is drawn from it i.e., it is in an open circuit.

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