Question

Yakub made a circuit as shown in the figure given below. He observed that the bulb did not glow but

on bringing a compass needle near it shows deflection. He was quite confused that if current is

flowing through the circuit, then why the bulb is not glowing. Meanwhile his friend Sourav arrived

and suggested him to add one more cell in the circuit. The bulb, then started glowing [5]

(a) Do liquids conduct electricity?

(b) What does the deflection of a compass needle shows?

(c) Why the bulb did not glow in the first case but glow in the second case?

(d) Does distilled water conduct electricity? If not, what can we do to make it conducting?

(e) What value of Sourav is shown here?​

Answer 1

Answer:

The brain has three main parts:

Cerebrum.

Cerebellum.

Brain stem.