Test your physics (conceptual questions for JEE)

Answer the question in this post to test your concepts for competitive exams.

Class 12 CBSE conceptual questions for board exams

This post contains conceptual questions for class 12 board exams although anyone can solve them if interested.
Try to solve these questions on your own in my net post I’ll publish 3 marks and 5 marks sample questions.

Question 1. W cm apart on a hat is the amount of work done in moving 100 nC charge between two points 5 cm apart on an equipotential surface?

How to solve resistor in series problems

Here in this article we will go through a easy problem showing the basics how to solve the problems where resistors are connected in series and you have to find the equivalent resistance of the circuit. we will do this through an example . For this consider studying the question given below and how I solve this question following several steps. Here our goal will be to analyze few resistors connected in series combination. Further If you want to read the notes related to this topic please follow this link

Wavelength of a particle moving with relativistic speed

Question

Obtain expression for the wavelength of a particle moving with relativistic speed.

Solution

The relativistic momentum of a particle is given by