Short answer questions II — task. Science State Board, Class 10.

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1. Distinguish between the resistivity and conductivity of a conductor.

Answer variants:

reciprocal of the electrical resistivity

resistance of a conductor

conductor's resistance

$mho\ metre^{–1}$

material's ability to pass the current

$ohm\ metre$

$\sigma =$

$\frac{1}{\rho}$

$\rho =$

$\frac{RA}{L}$

Resistivity	Conductivity
It is the of unit length and unit area of cross-section.	It is the of a material.
SI unit is .	SI unit is .
It is a measure of to the flow of an electric current.	It is a measure of a through it.

2. What connection is used in domestic appliances and why?

All the electric circuits in a house are connected in .

The connections are made in parallel so that the the other circuits.

Another benefit of connecting circuits in parallel is that each electrical appliance receives the .

Did you find an error?

8. Short answer questions II