Question

Questions Based on High Order Thinking Skills (HOTS)
22. Three 2 V cells are connected in series and used as a battery in a circuit.
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(a) What is the p.d. at the terminals of the battery?
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(b) How many joules of electrical energy does 1 C gain on passing through (i) one cell (1) all three cells ?
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Answer 1

(a) If three cells of 2 volt each are connected in series to make a battery, then the total potential difference between terminals of the battery will be 6V.

(b) (i) Given: p.d. = 2V, Charge moved = 1C We know that Work done = p.d. x charge moved = 2 x 1 Work done = 2 joules (ii) Given: p.d. = 6V, Charge moved = 1C Work done = p.d. x charge moved = 6 x1 Work done = 6 joule.