A Wire of Length L Is Uniformly Stretched to Triple

question 24

Multiple Choice

A wire of length L is uniformly stretched to triple its original length.By what factor does its resistance change?

• A)1,i.e. ,no change
• B)3
• C)9

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Definitions:

Pharmacy

A place where drugs and medicines are prepared and dispensed by a pharmacist, also the science and practice of preparing and dispensing medical drugs.

Milliliters (mL)

A metric unit of volume equal to one-thousandth of a liter, commonly used to measure liquids.

Teaspoon (tsp)

A unit of measure typically used in cooking, equivalent to approximately 5 milliliters.

Equivalent Fractions

Fractions that have different numerators and denominators but represent the same value or proportion of a whole.