Cell Structure and Functions — Science STD 8 — Question

One day Ram was performing an experiment. He was trying to design an electric circuit in which he included tester, bulb and a battery. He had so much eagerness regarding this experiment that in so much hurry, he forgot to take the connecting wires of aluminium. He took the wires without any coating of PVC on them, so it could be dangerous for him. Any how, he managed to design an electric circuit but the moment, he switched ON the circuit, a spark was produced and bulb got fused with a small sound. He was about to touch those wires and heated bulb with his bare hands, at the same time, his teacher suggested him to perform the experiment by taking precautions.
(i) Explain what could have happened, if Ram would touched the electric bulb with his bare hands.
(ii) Mention why should he use the aluminium wires in his experiment?
(iii) State the values shown by Ram's teacher here.

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