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Questions and Answers
What experiment can be conducted to find the resistance per cm of a given wire?
What experiment can be conducted to find the resistance per cm of a given wire?
- Determining the internal resistance of a given primary cell using a potentiometer
- Comparing the emfs of two given primary cells using a potentiometer
- Plotting a graph of potential difference versus current (correct)
- Using a metre bridge to verify the laws of combination of resistances
How can the resistance of a galvanometer be determined?
How can the resistance of a galvanometer be determined?
- By using a sonometer
- By verifying the laws of combination of resistances
- By converting the galvanometer into an ammeter
- By the half-deflection method (correct)
What can be used to convert a given galvanometer into an ammeter and voltmeter of desired range?
What can be used to convert a given galvanometer into an ammeter and voltmeter of desired range?
- The resistance per cm of a given wire
- The specific resistance of a wire's material
- The known resistance and figure of merit of the galvanometer (correct)
- The laws of combination of resistances
What is the equation to determine the specific resistance of a wire's material using a metre bridge?
What is the equation to determine the specific resistance of a wire's material using a metre bridge?
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What can be used to compare the emfs of two given primary cells?
What can be used to compare the emfs of two given primary cells?
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