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Which of the following is NOT a use of a potentiometer?

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Question: Which of the following is NOT a use of a potentiometer?

Options:

  1. Measuring emf of a cell.
  2. Comparing emf of two cells.
  3. Measuring resistance directly.
  4. Calibrating voltmeters.

Correct Answer: Measuring resistance directly.

Solution: 

A potentiometer is not used for direct resistance measurement; it is primarily used for voltage measurements.

Which of the following is NOT a use of a potentiometer?

Practice Questions

Q1
Which of the following is NOT a use of a potentiometer?
  1. Measuring emf of a cell.
  2. Comparing emf of two cells.
  3. Measuring resistance directly.
  4. Calibrating voltmeters.

Questions & Step-by-Step Solutions

Which of the following is NOT a use of a potentiometer?
Correct Answer: Direct resistance measurement
  • Step 1: Understand what a potentiometer is. It is a device used to measure voltage or control electrical devices.
  • Step 2: Identify the common uses of a potentiometer. It is used for adjusting volume, tuning circuits, and measuring voltage.
  • Step 3: Recognize that a potentiometer is not typically used to measure resistance directly. Instead, it is used to measure voltage.
  • Step 4: Conclude that the question is asking for the option that does not fit with the common uses of a potentiometer.
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