the resistance of a 1 m long nichromr wire is 6 ohm if we reduce the lengyh of the wire to 70 cm what will its restance be?
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R = ρL/A
From above equation we can say that
R ∝ L
R1 / R2 = (L1 / L2)
R2 = R1 × (L2 / L1)
R2 = 6 × (70 / 100)
R2 = 4.2 Ω
It’s resistance will be 4.2 Ω
From above equation we can say that
R ∝ L
R1 / R2 = (L1 / L2)
R2 = R1 × (L2 / L1)
R2 = 6 × (70 / 100)
R2 = 4.2 Ω
It’s resistance will be 4.2 Ω
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