Question
Download Solution PDFConsider the following the statements
1. Meter bridge works on the principal of the Wheatstone bridge.
2. A Meter bridge is used to find the unknown resistance.
3. A meter bridge is used to find the internal resistance of the battery.
Which of the following statement is INCORRECT?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Meter bridge: Meter bridge is instruments based on the principle of Wheatstone bridge and is used to measure an unknown resistance.
- In the case of a meter bridge, the resistance wire AC is 100 cm long. Varying the position of tapping point B, the bridge is balanced.
- If in the balanced position of bridge AB = l, BC (100 – l) so that
Also,
EXPLANATION:
- From above it clear that the meter bridge works on the principle of Wheatstone bridge. Therefore, option 1 is correct.
- The Meter Bridge is instruments based on the principle of Wheatstone bridge and is used to measure an unknown resistance. Therefore option 2 is correct.
- The Meter bridge can't measure the internal resistance of a battery.
- A potentiometer is a device used to measure the internal resistance of the battery. Therefore option 3 is incorrect.
Last updated on May 6, 2025
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