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Physics

(a) Draw a schematic diagram of main circuit.

(b) Define conductivity.

(c) Of the three connecting wires in a household circuit, which two of the three wires are at the same potential?

Household Circuits

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Answer

(a) Schematic diagram of main circuit is shown below:

Draw a schematic diagram of main circuit. Physics Sample Paper Solved ICSE Class 10.

(b) The reciprocal of specific resistance is known as conductivity. It is represented by symbol σ

σ = 1ρ\dfrac{1}{ρ}

Its SI unit is ohm-1metre-1 or siemens metre -1.

(c) Neutral and earth are at the same potentials.

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