The following circuit diagram shows the experimental set up for the study, dependence of current on potential difference. Name the circuit components which are connected in series?
A
battery and voltmeter
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B
ammeter and voltmeter
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C
ammeter and rheostat
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D
resistor and voltmeter
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Solution
The correct option is C ammeter and rheostat Clearly the ammeter and resistor are connected end to end, thus they are in series. Also resistor and rheostat are in series, sine they are also joined end to end. So, the ammeter and rheostat are in series.