Question

Sam visited his uncle’s house who is an electrician . He saw resistors and few electrical equipments like ammeter , voltmeter , key and battery on his work table.His scientific curiosity increased and started connecting three resistors of equal resistances in series and then in parallel. His interest landed on 250 W television used for one hour , 1200 W toaster used for 10 minutes . He then came to a

conclusion and understood which device used more energy . Answer any four

questions. (4m)

(a) Draw circuit diagrams for series and parallel combination .

(b) If three resistors of resistance R are first connected in series and then parallel .

Find the ratio of their resistances​

Answer 1

Answer:

Explanation:

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