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20.1 The resistivity of which substance given in the table is best suited for making wires
for the transmission of electricity in the given circuit?
20.2 Which type of circuit is represented in the above circuit diagram?
(a) Series circuit
(b) Parallel circuit
© Simple Circuit
(d) Both (a) and (b)
20.3 Which of the following substances is attracted by a magnet?
(a) Nickel
(b) Mercury
(c) Copper
(d) Paper
20.4 How much current is flowing through the electrical circuit given above?
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sorry I don't know this question's answer
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