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please just refer to the link
 
http://www.fiitjeeregional.com/pdf/Class%2010th%20going%20to%20Class%2011th.pdf
 
solve question no. 7 in physics which is
 
The equivalent resistance between points A and B is :

Asked by dev.sultanpur123 21st March 2015, 2:53 PM
Answered by Expert
Answer:
The equivalent resistance will be as follows
 
 
 
begin mathsize 12px style Two space straight R space are space parallel space hence space its space equivalent space resistance space will space be fraction numerator 1 over denominator straight R apostrophe end fraction space equals space 1 over straight R space plus space 1 over straight R space straight R apostrophe space equals space straight R over 2 straight R apostrophe space is space then space series space with space straight R space hence space equivalent space circuit space will space be straight R " space equals space space straight R over 2 space plus space straight R space equals space fraction numerator 3 straight R over denominator 2 end fraction space straight R " space is space then space parallel space with space straight R space hence space final space equivalent space resistance space will space be 1 over straight R subscript straight e space equals space fraction numerator 2 over denominator 3 straight R end fraction space plus space 1 over straight R straight R subscript straight e space equals space 3 over 5 straight R space end style
Answered by Expert 23rd March 2015, 1:09 PM
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