Question

Write increasing order of resistance of galvanometer ammeter and volt meter

Answer 1

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➤Since, milliammeter is more sensitive, the resistance is lower in milliammeter. For a constant voltage , the current through a milliammeter must be lower (in the order of milliamperes) but the current through a ammeter would be higher (in the order of amperes) thus the resistance in milliammeter will be higher.

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Answer 2

Answer:

The increasing order of resistance among the following is: ammeter < galvanometer < voltmeter

Explanation:

• The resistance of the ammeter is the lowest and that of the voltmeter is the greatest among galvanometers, ammeters, and voltmeters; nonetheless, the ammeter should be linked in series to measure the current flowing through the circuit.
• The measured current and the actual current passing through it will differ if there is a significant amount of resistance in the device. Thus, it must have less resistance.
• It is connected in parallel to the load in the case of the voltmeter. Zero current must flow through the voltmeter to obtain an accurate reading. Therefore, it must have strong resistance.
• Therefore, the purpose of the ammeter's and the voltmeter's low and high resistance values is to get the best possible reading, not to put them in series or parallel.
• The sole difference between an ammeter and a galvanometer is that an ammeter includes additional resistance connected in parallel with the circuit. The two devices are constructed similarly.

Thus, the increasing order of resistance among the following is ammeter < galvanometer < voltmeter.

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