InterviewSolution
 Saved Bookmarks
    				| 1. | 
                                    Two material bars A and B of equal area of cross-section, are connected in series to a DCsupply. A is made of usual resistance wire and B of an n-type semiconductor(a) In which bar is drift speed of free electrons greater?(b) Ifthe same constant current continues to flow for a long time, how will the voltagedrop across A and B be affected?Justify each answer. | 
                            
| 
                                   
Answer»  a) In bar B drift speed is higher. Since, I=neAV For semiconductor n is lower b). With increase in resistance in A potential difference increases and in bar B with increase in resistance potential difference decreases. Like my answer if you find it useful!  | 
                            |