When a current of (2.5 +or- 0.5)A flows through a wire, it develops a potential difference of (20 +or-1)V . The resistance of the wire is
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I will don't understand bro.....
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6
apply ohm law
V=IR
R=V/I
20/2.5=8ohm
lomaniyar:
i think there should be two cases as it is +or -
kk thank you
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