Resistance of Aluminium wires 100 the cooper wire is having nobler drnetar Ke four times length then the Aluminium wire, find resistance of copper wire (Assume thatresistivity is same for both the wires)
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In ABC, DE || AB. If AD = 6 cm, AB = 10 cm, AE = 9 cm, then
AC is equal to
(a)7.5 cm
(b)8 cm
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