Process Control and Instrumentation
A bolometer is

Used for the measurement of thermal radiation
Both A & B Here
An element which senses optical input and delivers thermal output
Neither A nor B Here

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Process Control and Instrumentation
A magnetic flowmeter is

Based on the principle of Faraday's law
Capable of measuring the flow rate of slurries and electrolytes
Based on the linear relationship between the fluid flow rate and the induced voltage
All of these

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