The voltage across a wire is (100pm5)V and the current passing through it is (10pm0.2) A. Find the resistance of the wire.

The voltage across a wire is (100pm5)V and the current passing through

1.	The voltage across a wire is (100pm5)V and the current passing through it is (10pm0.2) A. Find the resistance of the wire.
Answer» Solution :VOLTAGE `V = (100 pm 5) V` Current I = (10 pm 0.2) A` Resistance R = ? Then resistance R is GIVEN by Ohm.s law R = V/I = 100/10 = 10 OMEGA ` ` (Delta R)/(R ) = ( (DELTAV)/(V) + (Delta I)/(I) )` `Delta R = ((Delta V)/(V) + (Delta I)/(I) R= (5/100 + (0.2)/(10) ) 10` ` = (0.05 + 0.02)10 = 0.07 xx 10 = 0.7` The resistance ` R = (10 pm 0.7) rho `