Dr. Sajid Ali

2022-02-03 18:11:06 Our Discussion Group Link https://t.me/+aC1qj4GKLS43NWJl
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2022-02-03 11:03:05 Application of Electromagnetism in Physics (including the Faraday’s Law)

Faraday’s Law is a fundamental law of electromagnetism. This law has widespread applications in various fields including industries, electrical machines etc. some of the major ones are listed below:

Electrical Transformers
This is a static device which is used for increasing or decreasing thhe voltage or current. It has its applications in generating station, transmission and distribution system. The transformer works on Faraday's law.

Electrical Generators
The basic working principle of electrical generator is Faraday's law of mutual induction .Electric generator is used to convert mechanical energy into electrical energy.

Induction Cookers
The Induction cooker also works on principle of mutual induction. When current flows through the coil of copper wire placed below a cooking container, it produces a changing magnetic field. This alternating or changing magnetic field induces an emf and hence the current in the conductive container.

Electromagnetic Flow Meters
It is used to measure velocity of blood and certain fluids. When a magnetic field is applied to electrically insulating pipe in which conducting fluids are flowing then according to Faraday's law an electromotive force is induced in it. This induced emf is proportional to velocity of fluid flowing.

Musical Instruments
It is also used in musical instruments like electric guitar, electric violin etc. Open / Comment

2022-02-03 11:01:57 Reproductive Isolation :- Prezygotic isolation and Postzygotic isolation

Prevention of inter breeding between the population of two different or closely related species
Reproductive isolation was explained by stebbian
Two types reproductive isolation are
Prezygotic isolation
Postzygotic isolation

1. Prezygotic isolation
Prevention of mating and the formation of zygote
Temporal isolation: Due to difference in breeding seasons of two species
Ecological isolation: Due to different habitats of two species
Behavioral isolation: Due to different sexual or coitus behavior of two species

2. Postzygotic isolation
The organisms mate but no offspring are produced
In viability: Zygote fails to develop
Sterility: Adults are sterile and do not produce gametes
Hybrid Breakdown: Sometimes inter specific mating produces a hybrid, but progeny is weak, abnormal or sterile. Open / Comment

2022-02-03 08:27:36 Dr. Sajid Ali pinned a photo Open / Comment

2022-02-02 20:35:56 Open / Comment

2022-02-02 20:35:56 Kal science +EVs special batch me Chemistry ki class hogi, Jo bhi students admission Lena chahe is batch me le sakte hain abhi admission open hain Open / Comment