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2021-12-15 18:18:20 In this Lecture, Shruti Ma'am will be teaching chapter 5 of NEET biology: Morphology of Flowering Plants

Daily 7:00 PM class | Monday to Friday | Theory + Tricks + Question practice of every chapter for NEET 2023.
Get daily class notes on telegram @onestopbiology





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2021-12-15 18:14:20 Let’s ace our CBSE Term 1 exams!!

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2021-12-15 14:32:53 If you want to score 95% in class 12th term 2 then you can turn on special class reminder by clicking on the link given below and share like so that you will get notification of this special class






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2021-12-15 12:03:46 What is Electrostatics?

Study of stationary electric charges at rest is known as electrostatics. An electroscope is used to detect the charge on a body. Pith ball electroscope is used to detect a charge and to know the nature of the charge. Gold leaf electroscope which was invented by Bennet detects a charge and the nature of the charge and determines the quantity of the charge

Conductors, Insulators, and Semiconductors

A body in which electric charge can easily flow through is called conductor (e.g. metals).

A body in which electric charge cannot flow is called insulator or dielectric. (e.g. glass, wool, rubber, plastic, etc.)

Substances which are intermediate between conductors and insulators are called semiconductors. (e.g. silicon, germanium, etc)

Dielectric Strength: It is the minimum field intensity that should be applied to break down the insulating property of insulator.

Dielectric strength of air = 3 x 106 V/m

Dielectric strength of Teflon = 60 × 106 Vm–1

The maximum charge a sphere can hold depends on the size and dielectric strength of the medium in which the sphere is placed.

The maximum charge density of a sphere of radius ‘R’ in terms of electric intensity E at a distance in free space is Eε0(R/r)2.

When the electric field in the air exceeds its dielectric strength air molecules become ionized and are accelerated by fields and the air becomes conducting. Open / Comment

2021-12-14 19:47:20 Doubtnut ke Study Channels par ab sirf Instant doubt solving hi nahi
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2021-12-14 18:25:17 Ace your ICSE Biology exam!!

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2021-12-13 19:47:31 Doubtnut ke Study Channels par ab sirf Instant doubt solving hi nahi
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2021-12-13 17:19:44 𝐑𝐞𝐬𝐩𝐢𝐫𝐚𝐭𝐢𝐨𝐧 𝐢𝐧𝐯𝐨𝐥𝐯𝐞𝐬 the 𝐟𝐨𝐥𝐥𝐨𝐰𝐢𝐧𝐠𝐬 𝐬𝐭𝐞𝐩𝐬 :-

(i) 𝐁𝐫𝐞𝐚𝐭𝐡𝐢𝐧𝐠 or 𝐩𝐮𝐥𝐦𝐨𝐧𝐚𝐫𝐲 𝐯𝐞𝐧𝐭𝐢𝐥𝐚𝐭𝐢𝐨𝐧 by which atmospheric air is drawn in and 𝐂𝐎𝟐 rich alveolar air is 𝐫𝐞𝐥𝐞𝐚𝐬𝐞𝐝 𝐨𝐮𝐭.

(ii) 𝐃𝐢𝐟𝐟𝐮𝐬𝐢𝐨𝐧 of 𝐠𝐚𝐬𝐞𝐬 (O2 and CO2) across 𝐚𝐥𝐯𝐞𝐨𝐥𝐚𝐫 𝐦𝐞𝐦𝐛𝐫𝐚𝐧𝐞.

(iii) 𝐓𝐫𝐚𝐧𝐬𝐩𝐨𝐫𝐭 of 𝐠𝐚𝐬𝐞𝐬 by blood.

(iv) 𝐃𝐢𝐟𝐟𝐮𝐬𝐢𝐨𝐧 of O2 and CO2
between 𝐛𝐥𝐨𝐨𝐝 and 𝐭𝐢𝐬𝐬𝐮𝐞𝐬.

(v) 𝐔𝐭𝐢𝐥𝐢𝐬𝐚𝐭𝐢𝐨𝐧 of O2 by the cells for 𝐜𝐚𝐭𝐚𝐛𝐨𝐥𝐢𝐜 reactions and resultant release of 𝐂𝐎𝟐.

In 𝐭𝐢𝐬𝐬𝐮𝐞 following conditions are favourable for 𝐝𝐢𝐬𝐬𝐨𝐜𝐢𝐚𝐭𝐢𝐨𝐧 of 𝐨𝐱𝐲𝐠𝐞𝐧 from 𝐨𝐱𝐲𝐡𝐚𝐞𝐦𝐨𝐠𝐥𝐨𝐛𝐢𝐧 :-

(i) 𝐋𝐨𝐰 PO2

(ii) 𝐇𝐢𝐠𝐡 PCO2

(iii) 𝐇𝐢𝐠𝐡 H+
concentration

(iv) 𝐋𝐨𝐰 pH

(v) 𝐇𝐢𝐠𝐡𝐞𝐫 𝐭𝐞𝐦𝐩𝐞𝐫𝐚𝐭𝐮𝐫𝐞 Open / Comment

2021-12-07 17:22:17 Looking for ultimate Biology Test series for NEET 2022 and 2023? Download the app from this link. https://play.google.com/store/apps/details?id=co.bran.gea Open / Comment

2021-12-07 15:22:23 Looking for ultimate test series for NEET 2022 and 2023? Join Shruti ma'am on INSTA LIVE tonight at 8 PM on https://www.instagram.com/onestopbiology/

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