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How is ammeter and voltmeter attached to a circuit?
Ammeters are connected in series with the load under test. This requires the load be disconnected from the source, and the ammeter placed in circuit. Voltmeters are connected in parallel with the load under test. This does not require any circuit changes. Sorry, but WikiAnswers does not support illustrations.
Is a voltmeter placed parallel to a circuit?
Depends. What did you want to measure? If it's voltage drop across the incandescent element, then you had better hook up your infinite resistance voltmeter in parallel with the lamp.
How do you identify positive terminals in voltmeters and ammeters?
The positive terminals in voltmeters and ammeters are generally indicated by a red coloring and a + (plus) symbol. Negative is generally black and - (minus).
What are the types of digital voltmeters?
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Why is an AC voltmeter a second order instrument?
DC voltmeters take the average of a set of samples. AC voltmeters work out the RMS voltage (root-mean-square) of the signal which is defined as: VRMS = The square-root of the intergral over one period of v2(t)
