This resource describes the following
1.the constructional feature of a bipolar junction transistor (BJT)
2.the two different types of bipolar transistor configurations: NPN and PNP transistors
3.transistor i-v characteristics
4.Each region of operation in the characteristics
5.basic BJT applications such as switch and amplifiers

Chandrayaan-2 is India's second lunar exploration mission after Chandrayaan-1. It is developed by the Indian Space Research Organisation (ISRO), the mission was launched from the second launch pad at Satish Dhawan Space Centre on 22 July 2019 at 2.43 PM IST to the Moon .It consists of a lunar orbiter, a lander, and a lunar rover named Pragyan, all of which were developed in India.The main scientific objective is to map the location and abundance of lunar water.
It also has an objective of spotting soft land on lunar. Scientific goals include studies of lunar topography, mineralogy, elemental abundance, the lunar exosphere, and signatures of hydroxyl and water ice.

Doing a MOOC or an Online Course is like booking a cab or ordering food online. There is an unprecedented expansion and ease. But the same way we see the limitations and see there are haves and have-nots in this COVID-stricken damaged world, we need to know that many of us do not know good enough about MOOCs as well. Apart from the update to you that even you can host and launch an Online Course, let us share a good platform of free MOOCs- HP EdcastCloud.

It is an introductory video for the online course on "OER for Empowering Teachers " on SWAYAM portal.

All changes in the world are one of the two types – Reversible changes and irreversible changes. A change which can happen backward, that is, can be reversed is called a reversible change.  A change which cannot happen backward, that is, it cannot be reversed is called an irreversible change. 

Statistics CBSEMaterial available is mainly for class 10 CBSE students, but it may be flexible to all. The topic covered under this material are Introduction to Statistics, primary data, secondary data, Class interval-Exclusive/ Inclusive, class Mark, class size, Cumulative frequency.

Definition of statistics, Data, Raw data, Array, Grouped data, ungrouped data, Range, Inclusive class interval, Exclusive class interval ,frequency, differen...

This is a learning Module containing the Title Ways of Managing Stress as Downloadable doc. file.

In microeconomics, supply and demand is an economic model of price determination in a market. It postulates that, holding all else equal, in a competitive market, the unit price for a particular good, or other traded item such as labor or liquid financial assets, will vary until it settles at a point where the quantity demanded (at the current price) will equal the quantity supplied (at the current price), resulting in an economic equilibrium for price and quantity transacted.

Contents :
1 History
2 Overview
2.1 Extending the definitions
2.2 Mnemonics
2.3 Calculating trigonometric functions
3 Applications
4 Pythagorean identities
5 Angle transformation formulae
6 Common formulae
6.1 Law of sines
6.2 Law of cosines
6.3 Law of tangents
6.4 Euler's formula
7 See also
8 References
9 Bibliography

The clock is ticking: A technology demonstration that could transform the way humans explore space is nearing its target launch date of June 24, 2019. Developed by NASA's Jet Propulsion Laboratory in Pasadena, California, the Deep Space Atomic Clock is a serious upgrade to the satellite-based atomic clocks that, for example, enable the GPS on your phone.

Ultimately, this new technology could make spacecraft navigation to distant locations like Mars more autonomous. But what is an atomic clock? How are they used in space navigation, and what makes the Deep Space Atomic Clock different? Read on to get all the answers.