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

Important Questions on Electricity

HARD

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 1 - Electricity>NCERT EXEMPLAR PROBLEMS>Q 31

What is electrical resistivity of a material? What is its unit? Describe an experiment to study the factors on which the resistance of conducting wire depends.

HARD

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 1 - Electricity>NCERT EXEMPLAR PROBLEMS>Q 32

How will you infer with the help of an experiment that the same current flows through every part of the circuit containing three resistances in series connected to a battery?

HARD

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 1 - Electricity>NCERT EXEMPLAR PROBLEMS>Q 33

How will you conclude that the same potential difference (voltage) exists across three resistors connected in a parallel arrangement to a battery?

HARD

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 1 - Electricity>NCERT EXEMPLAR PROBLEMS>Q 34

What is Joule’s heating effect? How can it be demonstrated experimentally? List its four applications in daily life.

MEDIUM

10th CBSE