General Science Yadi Kisi Taar Ki Trijya Adhi Kar Dee Jaye To Uska Pratirodh . . .

Q.10754: यदि किसी तार की त्रिज्या आधी कर दी जाए तो उसका प्रतिरोध . . .
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B
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D
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कृपया शेयर करें=>


यदि किसी तार की त्रिज्या आधी कर दी जाए तो उसका प्रतिरोध . . . - If the radius of a wire is half done then its resistance. . . - Yadi Kisi Taar Ki Trijya Adhi Kar Dee Jaye To Uska Pratirodh . . . General Science in hindi,   Duguna Ho Jayega question answers in hindi pdf  Ek - Chauthai Rah Jayega questions in hindi, Know About Adha Rah Jayega General Science online test General Science notes in hindi quiz book    Solah Guna Ho Jayega

GkExams on 19-09-2020

R=p.l/A A=πr^2

Or D=2r or r=D/2 पहले के लिए

बाद में 2r =D/2 or r=D/4

Now

R=p. l/πr^2

R=p.l/(D/4)^2

R=16.R अथार्थ पहले का 16 गुना

yadav on 08-05-2020

A OPTNS.

By Anonymous

Wrong

By Anonymous

Answer is wrong

By Anonymous

10754

By Anonymous

1/16

By Anonymous

Hows it

By Anonymous

Sir I think option 4 is not ryt..it should be 4 times.

By Anonymous

4 guna hoga bcaz .....r=€l/a,a=Pir^2,(r/2)^2=r^2/4=4€l/a


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