A steel wire of length 60 cm and area of cross section 10^6 is joined
Answers
Answered by
16
it seems like your question is incomplete. A complete should be ----> Calculate the resistance of aluminium wire of length 60cm and cross-sectional area 10^-6 m² The specific
resistance of aluminium is 2.6 × 10^-8 ohm.m
solve :- length of wire, l = 60cm = 0.6m
cross sectional area of wire , A = 10^-6 m².
specific resistance or resistivity,
= 2.6 × 10^-8 ohm. m
use formula,
R = 2.6 × 10^-8 × 0.6/10^-6
R = 1.56 × 10^-2 ohm
hence, resistance of wire is 1.52 × 10^-2 ohm
resistance of aluminium is 2.6 × 10^-8 ohm.m
solve :- length of wire, l = 60cm = 0.6m
cross sectional area of wire , A = 10^-6 m².
specific resistance or resistivity,
use formula,
R = 2.6 × 10^-8 × 0.6/10^-6
R = 1.56 × 10^-2 ohm
hence, resistance of wire is 1.52 × 10^-2 ohm
Similar questions