Why should a voltmeter have a high resistance and an ammeter a low resistance?
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Voltmeter is always connected in parallel with the load hence Is should have high resistance so that current doesnt pass through it .
Ammeters are always connected in series with the circuit hence it should have low resistance .
Ammeters are always connected in series with the circuit hence it should have low resistance .
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Answered by
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Hey mate there is your answer,
ammeter has low resistance because it is a instrument which measures the electric current in amperes in a branch of a circuit . It must be placed in series with the measured branch , and must have very low resistance to avoid significant alternation of the current it is to measure .Voltmeter has high resistance because it measures the voltage difference between two different points, but it should not change the amount of current going through the element between those two points .So, it should have high resistance .
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ammeter has low resistance because it is a instrument which measures the electric current in amperes in a branch of a circuit . It must be placed in series with the measured branch , and must have very low resistance to avoid significant alternation of the current it is to measure .Voltmeter has high resistance because it measures the voltage difference between two different points, but it should not change the amount of current going through the element between those two points .So, it should have high resistance .
I hope it's help you
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