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Which of the following instruments does not have plus (+) or minus (–) sign marked on it while representing in a circuit diagram?(1) Rheostat(2) Voltmeter(3) Ammeter(4) Cell |
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Answer» Which of the following instruments does not have plus (+) or minus (–) sign marked on it while representing in a circuit diagram? (1) Rheostat (2) Voltmeter (3) Ammeter (4) Cell |
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