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CBSE Class 10 Answered

why voltmeter is high resistance whereas ammeter is a low instrument instrument?
Asked by riya | 19 Apr, 2013, 02:26: PM
answered-by-expert Expert Answer
Voltmeter measures in parallel. Low resistance would cause significant current flow through the meter and load the measured circuit - which could cause erroneous readings. 
The ammeter, on the other hand, measures current flow in series with the balance of the circuit - so low resistance would be best so it doesn't load the circuit.
Answered by | 20 Apr, 2013, 11:35: AM

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