Assertion: In all conductors, for studying the thermoelectric behaviour of metals, lead is taken as a reference metal.
Reason: In lead, the Thomson effect is negative.

Assertion : In all conductors, for studying the thermoelectric behaviour or metals, lead is taken as a reference metal. Reason : In lead, the Thomson effect is negative.

Mention the metals in which negative Thomson effect is observed.

Name the metals that exhibit positive Thomson effect.

Assertion: p-type semiconductors are good conductors of electricity due to metal excees defects Reason: f-centres are created due to metal excess defects

Assertion: p-type semiconductors are good conductors of electricity due to metal excees defects Reason: f-centres are created due to metal excess defects

Assertion: p-type semiconductors are good conductors of electricity due to metal excees defects Reason: f-centres are created due to metal excess defects

Assertion : Metals are good conductors of electricity. Reason : Bromine is the only liquid metal.

The poorest conductor among metals is lead,.

Can we call these metals (coal and pencil lead)?