a cell can be balanced against 110 cm and 100 cm of potentiometer wire ,respectively with and without being short circuited through a resistance of 10 ohm what is its intrnal resistance? in this type of question how we can know which is L1 ,L2, also solve this question

Asked by Manisha Mehrotra | 21st Sep, 2010, 09:37: AM

Expert Answer:

Value of internal resistance = [L1-L2)/L2]*value of the resistance
 
Hence the value of the resistance = [(110-100)/100]*10 = 1 ohm
 
Hence the value of the internal resistance is 1 ohm.
 
Regards,

Answered by  | 21st Sep, 2010, 02:30: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.