Chapters

Electricity

The flow of charge through a conductor is called electric current. A conventional current flows from the positively charged body to the negatively charged body. Electronic current flows fro the negatively charged body to the positively charged body.

Electric Cell

A cell is a device in which potential difference is maintained between its two terminals by the conversion of chemical energy into electrical energy.

Simple Volatic Cell

This cell was invented by Alessandro Volta in the year 1800. it was the first device which could create a constant potential difference with the help of chemical energy.

Button Cells

Button cells are as small as buttons. They are commonly emplyed in small electronic devices, such as quartz wrist watches, calculaters etc.

Electric Circuits

The path along which electric current flows is called electric circuit.

Conductors

Materials which allows the electric current to flow through them are called electric conductors eg: all metals are conductors of electricity. Non-metals like graphite and gas carbon are also coanductos of electricity

Insulators

Materials which do not allow current to flow through them are called electric insulators eg: rubber, plastics etc.

Electromagnetism

The branch of physics which deals with the relationship between electricity and magnetism is called as electromagnetism.

Farady's Experiment

When a magnetic field is changed near conductor, a current is produced in it. This was discovered by Farady in 1931.

Electromagnetic Induction

Phenomenon due to which a changing magnetic field within a closed coil induces an electric current in the coil is called as electromagnetic induction.

Induced Current

Current produced in a closed coil when the magnetic lines of force rapidly change within it is called induced current. This principle is used in generating electric current by electric generator. Magnitude of the current depends upon:

  1. Strength of inducing magnet.
  2. Number of turns in coil
  3. Relative motion of magnet with respt to coil.

Latest Current Affaris

Current affairs 05/06/2019
Current affairs 05/06/2019

1). Comptroller and auditor general Rajiv Mehrishi has been appointed as the external auditors of World Health Organisation (WHO) for a four year term from 2020-23. 2).World Environment Day is observed on 5 June(Theme: The Air Pollution). 3). Madhya Pradesh cabinet has passed a resolution to increase reservation of OBC's 27%.

करंट अफेयर्स 03-04/06/2019
करंट अफेयर्स 03-04/06/2019

1. नयब बुकेले को ईआई सल्वाडोर के राष्ट्रपति के रूप में चुना गया है। (ईआई सल्वाडोर की राजधानी: सैन सल्वाडोर, मुद्रा: संयुक्त राज्य अमेरिका डॉलर) 2. राष्ट्रीय सुरक्षा सलाहकार (NSA) अजीत डोभाल की दोबारा अपने पद पर नियुक्ति हुई। NDA सरकार के दूसरे कार्यकाल में उन्हें कैबिनेट रैंक दिया गया है। 3. 3 जून को विश्व साइकिल दिवस मनाया जाता है।

Current affairs 03-04/06/2019
Current affairs 03-04/06/2019

1. Nyaib Bukele has been Sworn in as the president of  EI Salvador ( EI Salvador's capital: San Salvador, currency: United States Dollar). 2. National Security Advisor (NSA) Ajit Doval reappointed to his post and given Cabinet rank in the second term of the NDA government. 3. World Bicycle Day is observed on 3rd June .

Current Affairs Quiz

डेली जीके क्विज 17/05/2019
डेली जीके क्विज 17/05/2019

1. भारतीय नौसेना प्रमुख का नाम बताएं? 2. हाल ही में ICC द्वारा पहली महिला मैच रेफरी के रूप में किसे नियुक्त किया गया है? 3. हाल ही में एक हल्के खेल विमान (एलएसए) में अटलांटिक महासागर को पार करने वाली दुनिया की पहली महिला कौन बनी है?

Daily Gk Quiz 17/05/2019
Daily Gk Quiz 17/05/2019

1. Name the Indian Navy Chief? 2. Recently who has been appointed as first female match referee by ICC? 3. Recently who has becomes the world’s first woman to cross the Atlantic Ocean solo in a light sports aircraft (LSA)?

डेली जीके क्विज 29/09/2018
डेली जीके क्विज 29/09/2018

प्रश्न 1)। हाल ही में एशियाई विकास बैंक (एडीबी) ने राज्य में रोजगार को बढ़ावा देने के लिए मध्य प्रदेश में पहला बहु-कौशल पार्क स्थापित करने के लिए 150 मिलियन डॉलर के ऋण को मंजूरी दे दी है। एडीबी के अध्यक्ष कौन हैं? प्रश्न 2)। परकर्म परव किस अवसर पर मनाया जा रहा है? प्रश्न 3)। भारत की लाइव स्टॉक जनगणना 1 अक्टूबर से शुरू होने वाली है। इस तरह की कितनी जनगणना पहले आयोजित की गई है और यह कौन सी जनगणना है?