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Digital Imaging MCQs

Which of the following is an advantage of the vacuum tube voltmeter over the transistorized voltmeter (TVM)?

The VTVM requires warm-up time

The VTVM has high input impedance

The power consumption of the VTVM is more in comparison with the TVM

The VTVM cannot be operated on a low voltage source

Answer

Correct Answer: The VTVM has high input impedance

Explanation:

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