A wire of length 3 m and area of cross-section 1.7X10-6 m2 has a resistance 3X10-2ohm.
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what is ur question..... what we hav to find???? resistivity???
given:l=3m,A=1.7X10-6 m2,R=3X10-2ohm.
resistivity(ro)=?
solution :
resistivity(ro)=RXA / L
=3X10-2 X 1.7X10-6 / 3
=1.7X10-8ohm m.
thnx Fr seeeinggg my answer
given:l=3m,A=1.7X10-6 m2,R=3X10-2ohm.
resistivity(ro)=?
solution :
resistivity(ro)=RXA / L
=3X10-2 X 1.7X10-6 / 3
=1.7X10-8ohm m.
thnx Fr seeeinggg my answer
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