
Assertion (A): In the common domestic circuit, the earth wire is connected to a metallic plate buried deep inside the earth.
Reason (R): Earth wire ensures that any leakage of current to the metallic body of the appliance keeps its potential to that of the earth, so the user may not get a severe electric shock.

Explain why the bulb would not glow in the arrangement shown in Fig. 9.13.

Draw:
1) a leaf
2) a taproot and
3) a flower,
you have studied for Table 4.3