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What factors affect the resistance of a conductor?

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Important Questions on Current Electricity

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Science>Physics>Current Electricity>Electric Resistance
What happens to the resistance of a superconductor at critical temperature?
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Science>Physics>Current Electricity>Electric Resistance
How the voltage across individual components in a series circuit is similar to or different from the voltage in a parallel circuit?
MEDIUM
Science>Physics>Current Electricity>Electric Resistance
Resistance of a conductor depends on 
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Science>Physics>Current Electricity>Electric Resistance
What is the advantage of using alloys for resistors?
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Science>Physics>Current Electricity>Electric Resistance
Which conductor has the lowest resistivity?
MEDIUM
Science>Physics>Current Electricity>Electric Resistance
Two resistors of  2 Ω and  4 Ω are first connected in series to a 12 V battery. How will the total voltage drop across resistors will change when connected in parallel to the same battery.
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Science>Physics>Current Electricity>Electric Resistance
What type of material is used for heating elements?
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Science>Physics>Current Electricity>Electric Resistance
The current through the conductor is increasing if the resistance of the conductor increases.
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Science>Physics>Current Electricity>Electric Resistance
Two 5 Ω resistors are first connected in series and then in parallel combination. A 10 V battery is used to supply the current in both the circuits. Find the ratio of total voltage drop in both the cases.
MEDIUM
Science>Physics>Current Electricity>Electric Resistance
Select the correct statement about series and parallel circuit.
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Science>Physics>Current Electricity>Electric Resistance
What is the relationship between resistance and conductivity?
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Science>Physics>Current Electricity>Electric Resistance
What happens to resistance if the cross-sectional area of a wire is doubled?
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Science>Physics>Current Electricity>Electric Resistance

Two 5 Ω resistors are first connected in series and then in parallel to a battery of 20 V. Which of the following is a similarity between series and parallel circuits?

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Science>Physics>Current Electricity>Electric Resistance
What is the unit of resistivity?
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Science>Physics>Current Electricity>Electric Resistance
_____ is the resistance of a conductor of unit length and cross-sectional area.
MEDIUM
Science>Physics>Current Electricity>Electric Resistance
Explain how the concept of Ohm's law is applicable to both series and parallel circuits.
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Science>Physics>Current Electricity>Electric Resistance
Carbon is a (an)
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Science>Physics>Current Electricity>Electric Resistance
The opposition to flow of charges in a material is known as 
HARD
Science>Physics>Current Electricity>Electric Resistance
What will happen when an ammeter and voltmeter are connected in parallel and series?
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Science>Physics>Current Electricity>Electric Resistance
What is the role of a rheostat in a circuit?