Narendra Kumar Solutions for Chapter: Electricity, Exercise 9: NCERT EXEMPLAR PROBLEMS

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?

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

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

Find out in the electric circuit shown in figure, the effective resistance of two $8 \mathrm{\Omega }$ resistors in the combination.

Find out in the electric circuit shown in figure the current flowing through $4 \mathrm{\Omega }$ resistor.

Find out in the electric circuit shown in figure the potential difference across $4 \mathrm{\Omega }$ resistor.

Find out in the electric circuit shown in figure, the power dissipated in $4 \mathrm{\Omega }$ resistor.

Find out in the electric circuit shown in figure, the difference in ammeter readings, if any.