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Two wires A and B are of equal length and have equal resistance. If the resistivity of A is more than that of B,which wire is thicker and why?

Posted by Kriti Singh 4 years, 11 months ago

CBSE > Class 10 > Science

5 answers

Rishi Bhai 4 years, 11 months ago

Resistivity never different in same type of metal ,

1Thank You

Khushi 4 years, 11 months ago

I think , 'by the formula' is the right answer

0Thank You

Kriti Singh 4 years, 11 months ago

Yes I am also confuse because by the formula R=rho L/A. Rho=RA/l Here,R and L are same So,Rho=A According to formula those wire which have more resistivity more thickness But,we know those wire which have low resistivity the flow of current through the wire is more,or more flow of current only through thick wire...... Yha by the formula or by the concept different answer aa rha h ..what is the right answer?

0Thank You

Khushi 4 years, 11 months ago

As both the lengths are same and also the resistance of the wire and resistivity of wire A is higher than the other, the thickness of wire A should be more because more resistivity, more the thickness.

1Thank You

Divya Bhardwaj 4 years, 11 months ago

Wire B is thicker as thick wire has less resistivity

0Thank You

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Posted by Pandey Ji 6 months, 1 week ago

CBSE > Class 10 > Science