Question
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Solving time: 4 mins
Two resistors, and are connected in series with a battery. It is desired to measure the current in the circuit. An ammeter of resistance is used for this purpose. What will be the reading in the ammeter ? Similarly, if a voltmeter of resistance is used to measure the potential difference across the resistor, what will be the reading in the voltmeter?
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Text solutionVerified
Refer figure (a) Current through ammeter,
Refer figure (b) Combined resistance of voltmeter and resistance is,
Reading of voltmeter
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Question Text | Two resistors, and are connected in series with a battery. It is desired to measure the current in the circuit. An ammeter of resistance is used for this purpose. What will be the reading in the ammeter ? Similarly, if a voltmeter of resistance is used to measure the potential difference across the resistor, what will be the reading in the voltmeter? |
Topic | Current Electricity |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 114 |