Question

5. Abdul was testing the conductivity of a few
materials, and kept different materials in the
gap A - B. In which case did the bulb light?
А A
B
(a) when copper wire was kept
(b) when rubber eraser was kept
(c) when ceramic plate was kept
(d) when lead of pencil was kept​

Answer 1

Answer:

(a) when copper wire was kept because copper is a good conductor , it's resistivity is very low .

due to low resistivity it conduct electricity.

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Explanation:

i already explain in answer

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.thanks

Answer 2

Answer:

a is a true

Explanation: