Electric Resistance
Electric Resistance: Overview
This topic deals with the concept of resistance and factors affecting it including length and area. It shows the graph between resistance and area. It also mentions the formula used to calculate the resistance.
Important Questions on Electric Resistance
What will happen when an ammeter and voltmeter are connected in parallel and series?
Select the correct statement about series and parallel circuit.
The current through the conductor is increasing if the resistance of the conductor increases.
_____ is the resistance of a conductor of unit length and cross-sectional area.
Resistance of a conductor depends on
The opposition to flow of charges in a material is known as
What is the advantage of using alloys for resistors?
What is the relationship between resistance and conductivity?
What happens to the resistance of a superconductor at critical temperature?
What is the effect of combining resistors in series?
What type of material is used for heating elements?
What is the role of a rheostat in a circuit?
Which conductor has the lowest resistivity?
How is resistivity different from resistance?
What happens to resistance if the cross-sectional area of a wire is doubled?
Why is copper used for electrical wiring?
What is the formula for calculating resistance?
What is the relationship between resistance and temperature in a conductor?
What happens to the resistance of a wire if its length is doubled?
