Question Detail

MIC 121 Introduction what are microbes Objective Question
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Question

How does an electric analytical balance measure the mass of a substance?
Options
A By directly comparing it to a known physical weight.
B By measuring the force necessary to counteract the mass.
Correct Answer
C By detecting changes in electrical resistance caused by the mass.
D By emitting a laser to calculate the volume and density.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 40 explains, 'An electric analytical balance uses the force necessary to counteract the mass rather than measuring the mass itself.'

Hint

It uses an electromagnetic force to achieve balance.

Question Info

Course: MIC 121
Topic: Introduction what are microbes
Type: Objective
Difficulty: Not specified
Question 635 of 984
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