|
How does the random motion of free electrons in a conductor get affected when a potential difference is applied across its ends?
|
|
0
|
5597
|
September 7, 2016
|
|
Name the colours corresponding to the digits 4 and 7 in the colour code scheme for carbon resistors
|
|
0
|
2461
|
September 7, 2016
|
|
Define the term mobility of charge carriers in a conductor. Write its S.I. unit
|
|
0
|
10135
|
September 7, 2016
|
|
Graph showing the variation of current versus voltage for a material GaAs is shown in the figure, Identify the region of :
|
|
1
|
16963
|
September 7, 2016
|
|
Give an example of a material each for which temperature coefficient of resistivity is (i) positive, (ii) negative
|
|
0
|
9748
|
September 7, 2016
|
|
The plot of the variation of potential difference across a combination of three identical cells in series, versus current is shown below. What is the emf and internal resistance of each cell?
|
|
1
|
14456
|
September 6, 2016
|