A current of $0.5\, A$ is drawn by a filament of an electric bulb for $10$ minutes. Find the amount of electric charge that flows through the circuit.
Electrical resistivity of a given metallic wire depends upon
Elements of electric toasters and electric iron are made of an alloy rather than a pure metal. Give two reasons to justify the statement.
State the factors on which the heat produced in a current carrying conductor depends. Give one practical application of this effect.
Define resistivity of a material.