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Subject :NSO    Class : Class 6

Study the circuit carefully and answer

What can be placed between the open ends to light up the bulb ?

(i) Needle

(ii) Iron nail

(iii) Copper coin

(iv) Wooden piece

(A) (i) & (iii)

(B) (ii) & (iii)

(C) (i), (ii) & (iii)

(D) All of these.
What is this SOF? This is not expected from you all.

Ans 1:

Class : Class 6
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