A 3.0 m long wire with a radius of 1.0 mm is made of a material with a conductivity of 6.2 x 10 7 Ω -1 m -1 . A current of 2.5 A flows through the wire. Determine i) the wire's conductance and ii) the potential drop across the wire.

Exam Prep for Physics | Channels for Pearson+

27. Resistors & DC Circuits - Part 1 of 2

27. Resistors & DC Circuits - Part 1 of 2

27. Resistors & DC Circuits / Resistors and Ohm's Law / Problem 5

ANSWERS OPTIONS

i) 25 Ω^-1 , ii) 20 mV

i) 25 Ω^-1 , ii) 1.5 V

i) 65 Ω^-1 , ii) 39 mV

i) 65 Ω^-1 , ii) 2.2 V

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