Home » C.B.S.E. Class XII » Current Electricity

# Category Archives: Current Electricity

## All About Current Electricity:…………

Dear friends,

With the number of posts in the blog growing, I revisited the posts and decided to classify & club the posts pertaining to a unit in a single post. This will facilitate learning & make it enjoyable.The earlier posts in the series clubbed the information about the unit on Electrostatics,Wave Optics & Electromagnetic Waves.

**Here is All About Current Electricity for you…..**

***The Videos**

**Current Electricity-1 (Introduction to Electric Current, Types of current, Simple numerical problems)**

**Current Electricity-2 (Mechanism of current flow, Expression for drift speed & relation with current )**

**Current Electricity-3 (Relation between drift speed & current, Ohm’s law, Resistance, Resistivity,**** Factors affecting resistance.)**

**Current Electricity-4 (Current Electricity: Numerical Problems)**

**Current Electricity-5****(Cell: The EMF, Internal resistance & terminal voltage)**

**Current Electricity-6 (Series & Parallel Combination of Resistances)**

**Current Electricity-7 (Combination of Cells)**

**Current Electricity-8 (Introduction to Kirchhoff’s Laws)**

**Current Electricity-9 (Wheatstone Bridge; Slide Wire/Meter Bridge, Determination of resistance & resistivity)**

****The Notes**

**Current Electricity-I (Electric Current, Expression for drift speed & relation with current )**

**Current Electricity-II (Ohm’s law, Resistance, Resistivity & factors affecting resistance.)**

**Current Electricity-III (Electrical Measurements, Kirchhoff’s law,Meter bridge, Potentiometer)**

*****The Assignment**

To be posted shortly…

**Happy Learning!**

## Expression for drift velocity

The video explains the mechanism of current flow in the conductors.

An expression for drift speed has been derived in this video.

The topic discussed is a part of CBSE Class 12 Physics syllabus.

The video may be watched using the link below:

## Videos-Current Electricity-I

It is a pleasure to present a new project in our effort to make learning Physics easier. In order to give you a feeling of the real Class room teaching learning process, we at **physicsbeckons** are trying to produce and present the CBSE Physics class 12 curriculum in the form of videos. To begin with, a video on the lesson Current Electricity (Physics) class 12 has been uploaded.

The video Current Electricity-I is an introduction to Electric Current, types of current and a few simple numerical problems based on the content learnt. You may go through the videos carefully to understand the basic concepts involved and the applications thereof for solution of the numerical problems.

**Please make sure to reinforce learning by carefully going through any Text/reference book and try more numerical problems in order to gain the confidence and to reassure yourself that the lessons have been well understood.**

The link to the video is as under:

**https://www.youtube.com/watch?v=FZezJLSc9-k**

Your feedback is welcome.

Happy learning!

## Electrical Measurements….( Meter bridge & Potentiometer )

Dear students,

It is a pleasure to write to you again with a new project in our effort to make learning Physics for you easier. In order to give you a feeling of the real Class room teaching learning process, we at physicsbeckons are trying to produce and present all the CBSE Physics class 12 curriculum in the form of videos. To begin with, two videos on the lesson Current Electricity (Physics) class 12 are being uploaded.

The video Current Electricity-VIII is an introduction to Kirchoff’s laws. Current Electricity-IX deals with Meter Bridge & its applications. The video Current Electricity-X gives a clear application of Potentiometer principle and its application to compare EMF’s and to find the internal resistance of a given cell.

The relevant notes are also being made available for your ready reference. You may click below for the same:

The link to the videos are as under:

&..

Your feedback is welcome.

## Videos…Current Electricity-VIII

The present video will give you an introduction to Kirchhoff’s laws. The laws are very important from examination point of view.

Click below to watch the video.

https://www.youtube.com/edit?o=U&video_id=-xxKHY0QEAQ

Happy learning!

## Videos…Current Electricity-VI

Dear students

In continuation of a series of videos on CURRENT ELECTRICITY, a new video CURRENT ELECTRICITY-VI is being posted. The video deals with Combination of resistances. A few problems on the topic are also included to reinforce the concepts you have learnt in this video.

REMEMBER: Your effort/self study is the most important. All external factors may just guide you as to how you should work. It is important for you to continue learning by written practice and solving additional problems from CBSE previous year papers..

You may practice a large no. of problems in order to muster confidence.

For notes on important topics in the lesson ,CURRENT ELECTRICITY of Physics Class 12, you may look into the topics in the lesson covered in this blog.

Here is the link to the video:

Happy Learning!

It is advisable to watch the videos in sequence i.e. CE-I, CE-II, CE-III CE-IV, CE-V followed by part VI..

HAPPY LEARNING!

The next video will be a continuation of the lesson on Current Electricity……..& we will discuss Grouping of cells.

## Videos…Current Electricity-V

Dear students

In continuation of a series of videos on CURRENT ELECTRICITY, a new video CURRENT ELECTRICITY-V is being posted. The video explains EMF, Internal resistance and terminal voltage of a cell. A few problems on the topic are also included to reinforce the concepts you have learnt in this video.

REMEMBER: Your effort/self study is the most important. All external factors may just guide you as to how you should work. It is important for you to continue learning by written practice and solving additional problems from CBSE previous year papers..

You may practice a large no. of problems in order to muster confidence.

For notes on important topics in the lesson ,CURRENT ELECTRICITY of Physics Class 12, you may look into the topics in the lesson covered in this blog.

Here is the link to the video:

It is advisable to watch the videos in sequence i.e. CE-I, CE-II, CE-III CE-IV followed by part V.

HAPPY LEARNING!

The next video will be a continuation of the lesson on Current Electricity……..

## Videos…..Current Electricity-IV

Dear students

In continuation of a series of videos on CURRENT ELECTRICITY, a new video CURRENT ELECTRICITY-IV is being posted. The video has a few solved numerical problems based on the concepts you have learnt in the first three videos. The aim of the present video is to make you discover that the numerical problems in physics are within your easy reach.

REMEMBER: Your effort/self study is the most important. All external factors may just guide you as to how you should work. It is important for you to ‘PLAN YOUR WORK & WORK ON THE PLAN’.

It is advisable to practice a large no. of problems in order to muster confidence in yourself.

For notes on important topics in the lesson ,CURRENT ELECTRICITY of Physics Class 12, you may look into the topics in the lesson covered in this blog.

Here is the link to the video:

It is advisable to watch the videos in sequence i.e. CE-I, CE-II, CE-III followed by part IV.

HAPPY LEARNING!

The next video will be a continuation of the lesson on Current Electricity……..

## Current Electricity-III

CURRENT ELECTRICITY-III: The video deals with the relation between drift speed & current. It also leads us to Ohm’s law, expression for resistance, resistivity & the factors affecting resistance.

You may go through the video carefully to understand the basic concepts involved and the applications thereof for solution of the numerical problems. Please make sure to reinforce learning by carefully going through any Text/reference book and try more numerical problems in order to gain the confidence and to reassure yourself that the lessons have been well understood.

Click below to begin:

https://www.youtube.com/edit?o=U&video_id=Ng0Q4ddRoq4

The next video in the series will deal with problems based on the concepts in the three videos on Current Electricity.

Happy learning!

## A Step Closer…….

Dear students,

It is a pleasure to write to you again with a new project in our effort to make learning Physics for you easier. In order to give you a feeling of the real Class room teaching learning process, we at physicsbeckons are trying to produce and present the CBSE Physics class 12 curriculum in the form of videos. To begin with, two videos on the lesson Current Electricity (Physics) class 12 are being uploaded.

The video Current Electricity-I is an introduction to Electric Current, types of current and a few simple numerical problems based on the content learnt. You may go through the videos carefully to understand the basic concepts involved and the applications thereof for solution of the numerical problems. Please make sure to reinforce learning by carefully going through any Text/reference book and try more numerical problems in order to gain the confidence and to reassure yourself that the lessons have been well understood.

The video Current Electricity-II deals with explanation of mechanism of current flow in the conductors and expression for drift speed.

The next video Current Electricity-III will deal with relation between drift velocity and current and derivation of Ohm’s law. Numerical problems based on these concepts will also be covered in this video.

Your feedback is welcome.

The links to the video are as under.

Current Electricity-I

Current Electricity-II

Happy learning!