show four different ways in which three resistors of 'r' ohm each may be connected in a circuit. In which case is the equivalent resistance of combination i) maximum ii) minimum.
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r will be maximum in series and minimum in parallel
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How is an ammeter connected in a circuit to measure current flowing ... parallel and a voltmeter across the combination. ... resistor, a 30 Ω resistor, a plug key, all connected in series.
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