HARD
10th CBSE
IMPORTANT
Earn 100

State Ohm's law. How can it be verified experimentally? Does it hold good under all conditions? Comment.

Important Questions on Electricity

EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 3 - Electricity>Assignment-3>Q 50

What is meant by 'Electric Resistance' of a conductor?

HARD
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 3 - Electricity>Assignment-3>Q 50
A wire of length L and resistance R is stretched so that its length is doubled and the area of cross-section is halved. How will its resistance change?
EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 3 - Electricity>Assignment-3>Q 50
A wire of length L and resistance R is stretched so that its length is doubled and the area of cross-section is halved. How will its resistivity change?
HARD
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 3 - Electricity>Assignment-3>Q 51
A wire is stretched so that its length becomes 65 times its original length. If its original resistance is 25 Ω, find its new resistance and resistivity.
HARD
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 3 - Electricity>Assignment-3>Q 52
Describe an experiment to study the factors on which the resistance of a conductor or a conducting wire depends.
EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 3 - Electricity>Assignment-3>Q 53

Is the circuit given below correct? Justify your answer.

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HARD
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 3 - Electricity>Assignment-3>Q 54

Write the formula of the relation between resistance and resistivity of an ohmic conductor. A wire of length 'l' and resistance 'R' is stretched so that its length is doubled and area of cross-section is halved. How will its resistance change? Justify your answer.

EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 3 - Electricity>Assignment-3>Q 54

A wire of length 'l' and resistance 'R' is stretched so that its length is doubled and area of cross-section is halved. How will its resistivity change? Justify your answer.