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please help me with question no f6 explain it in detail

Pushkar Kumar , 6 Years ago
Grade 12
anser 1 Answers
Arun

Last Activity: 6 Years ago

Dear student
 
 

Let ext. resistance be R ohma

let current be I

so 20 = I(10+R)

also I*4 = .01 V

so, I=2.5*10-3

on substitution, we get R = 7990 ohms

 

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