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The MCQ Specific resistance of a wire can be measured by the formula: r/l, ra/l, rl/a and a/rl with "Resistance and Resistivity" App Download (Free) for online degree programs. Study resistance and resistivity quiz questions, download Google eBook (Free Sample) for 2 year online degrees.

## Resistance and Resistivity MCQ Quiz : Physics MCQs

MCQ 1: Specific resistance of a wire can be measured by the formula

A) R/L
B) RA/L
C) RL/A
D) A/RL

MCQ 2: Fractional change in resistance per kelvin is known as

A) temperature constant
B) resistance coefficient
C) temperature coefficient
D) resistance constant

MCQ 3: SI unit of the conductivity of the material is

A) Ω m
B) Ω
C) Ω-1m
D) Ω-1m-1

MCQ 4: Wire having resistance of 10 Ω at 0 °C and 20 Ω at 273 °C will have the temperature coefficient of

A) 4.66 × 10-3 per K
B) 3.66 × 10-3 per K
C) 3 × 10-3 per K
D) 6.6 × 10-3 per K

MCQ 5: Current of 0.75 A, when a battery of 1.5 V is connected to the wire of 5 m having cross sectional area 2.5 × 10-7 m², will have resistivity

A) 1 × 10-7
B) 1.1 × 10-7
C) 2 × 10-7
D) 2.1 × 10-7

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