Current Electricity: Resistance, Conductance, and Ohm's Law

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10 Questions

What is the unit of Specific Conductance?

$ohm^{-1}m^{-1}$

What is the purpose of Colour coding of carbon Resistances?

To indicate the value of the Resistance

What is the advantage of Electric Energy over other forms of energy?

It is more convenient to use and transport

What is the principle of Kirchhoff's laws?

The sum of the currents entering a junction is equal to the sum of the currents leaving the junction

What is the application of Wheatstone bridge?

To measure the unknown resistance

What is the unit of electric current?

Ampere

What is the phenomenon where certain materials exhibit zero electrical resistance at very low temperatures?

Superconductivity

What is the combination of resistances where the current passes through each resistor in sequence?

Series combination

What is the factor that affects the resistance of a conductor?

Length, temperature, and cross-sectional area

What is the device used to measure an unknown resistance using a wheatstone bridge circuit?

Slide wire bridge

Test your understanding of electric current, resistance, and conductance. This quiz covers topics such as Ohm's law, series and parallel resistances, Kirchhoff's laws, and the heating effect of current.

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