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MIC 121 Introduction what are microbes Objective Question
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Question

Which of the following describes the principle of operation for an electric analytical balance?
Options
A It measures the mass directly by balancing against known weights.
B It uses a mechanical spring to determine the mass based on displacement.
C It employs an electromagnet to create a force that counteracts the sample's mass, displaying the resulting force.
Correct Answer
D It calculates mass based on the volume of liquid displaced by the sample.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 40, under 'PRINCIPLE OF ANALYTICAL BALANCE', states: 'An electric analytical balance uses the force necessary to counteract the mass rather than measuring the mass itself.' and 'An electromagnet is used to create a force required to achieve a balance with the mass of the substance, and the resulting force is displayed.'

Hint

Read the 'PRINCIPLE OF ANALYTICAL BALANCE' section to understand how it functions.

Question Info

Course: MIC 121
Topic: Introduction what are microbes
Type: Objective
Difficulty: Not specified
Question 654 of 984
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