Q10 of 330 Page 5

Fill in the following blanks with suitable words :
(a) Potential difference is measured in …………… by using a ……….. placed in ……… across a component.

(b) Copper is a good ………. plastic is an ………..

(a) Potential difference is measured in volts by using a voltmeter placed in parallel across a component.

(b) Copper is a good conductor plastic is an insulator

What is the unit of electric charge?

Define one coulomb charge.

What is meant by conductors and insulators? Give two examples of conductors and two of insulators.

Which of the following are conductors and which are insulators?

Sulphur, Silver, Copper, Cotton, Aluminium, Air, Nichrome, Graphite, Paper, Porcelain, Mercury, Mica, Bakelite, Polythene, Manganin.

Fill in the following blanks with suitable words :(a) Potential difference is measured in …………… by using a ……….. placed in ……… across a component.(b) Copper is a good ………. plastic is an ………..