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Fig. shows a rectangular conducting loop PQSR in which arm RS of length l is movalbe. The loop is kept in a uniform magnetic field B directed downwards perpendicular to the plane of the loop. The arem RS is moved with a uniform speed v. Deduce an expression for
(i) the emf induced across the are RS.
(ii) the external force required to move the arm, and
(iii) the power dissipated as heat.
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Posted by Sonu Kumar 6 years, 3 months ago

CBSE > Class 12 > Physics

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Among the isomeric alkanes of molecular formula c6h12 identify the one that on photochemical Chlorination yelds...a single Monochloride

Posted by Anushka Singh 6 years, 3 months ago

CBSE > Class 12 > Chemistry

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Sir how to learn genetic easy

Posted by Nand Lal Sahani 6 years, 3 months ago

CBSE > Class 12 > Biology

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Naveen Ak Naveen Ak 6 years, 3 months ago

First think it is easy and start with positive attitude

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What is the minimum value of sin (sinx)?

Posted by Sourabh Singh 6 years, 3 months ago

CBSE > Class 12 > Mathematics

1 answers

Ravi Joshi 6 years, 3 months ago

X=90,π/2

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Plz tell me the syllabus of HINDI of mid term exam (CBSE)

Posted by Anuj Aryan @ 6 years, 3 months ago

CBSE > Class 12 > हिंदी ऐच्छिक

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Rahul Gupta 6 years, 3 months ago

Aantra

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Half early sample 6

Posted by Supriya Raj 6 years, 3 months ago

CBSE > Class 12 > Physics

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Khaane kise khete h

Posted by Gautam Gupta 6 years, 3 months ago

CBSE > Class 12 > हिंदी ऐच्छिक

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Fullsleeves uniform in notice whrite

Posted by Shivani Sood 6 years, 3 months ago

CBSE > Class 12 > Other Subjects

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Mention 2 autosomal genetic disorders with their symptoms

Posted by Muskan Agrahari 6 years, 3 months ago

CBSE > Class 12 > Biology

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Raman Brar 6 years, 3 months ago

1.Down syndrome symptoms broad forehead protruding tongue broad palm 2. Edward syndrome symptoms small mouth and jaw deformed earsmentally retrated

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sithyudh kad huaa tha

Posted by Prakash Shah 6 years, 3 months ago

CBSE > Class 12 > राजनीति विज्ञान

4 answers

Satender Yadav 6 years, 2 months ago

1945-1991

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Dhanraj Sagar 6 years, 3 months ago

1945-1990

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Shruti Singh 6 years, 3 months ago

1945 se 1991

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Aditya Tiwari 6 years, 3 months ago

1945

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bookanan kon tha?

Posted by Im Yashika 6 years, 3 months ago

CBSE > Class 12 > इतिहास

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Hëmânt Hèmú 6 years, 3 months ago

Fran c c chikitsak

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Would I get figures of speech of all the poems ?

Posted by Raithatha Dhruv 6 years, 3 months ago

CBSE > Class 12 > English Core

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Why microwave are used in navigation unless it have higer wavelength?

Posted by Raman Brar 6 years, 3 months ago

CBSE > Class 12 > Physics

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Mamimum value of f(x)=sin(sinx)

Posted by Tisha Tiwari 6 years, 3 months ago

CBSE > Class 12 > Mathematics

4 answers

Harsh Kumar 6 years, 3 months ago

when, x = 90, then sin(sin x) = sin{sin 90} = sin(1) = sin 1 So, Maximum value of sin(sin x) is sin 1 when x = 90

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Ravi Joshi 6 years, 3 months ago

π/2

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Atul Singh 6 years, 3 months ago

Maximum value is sin1 at x = 90°

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Atul Singh 6 years, 3 months ago

X = 90

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Advertisement of selling TV and refrigerator

Posted by Aditya Rout 6 years, 3 months ago

CBSE > Class 12 > English Core

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First tearm paper

Posted by Muskan B 6 years, 3 months ago

CBSE > Class 12 > हिंदी कोर

1 answers

Kapil Bhati 6 years, 3 months ago

tulsidas jevan Aur Rachnayr

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Any one wants questions paper from cbse official 2020 board (i got these papers from my uncle works in cbse delhi ) just give your WhatsApp number here ... May i help you friends

Posted by Himanshu Shekhar 6 years, 3 months ago

CBSE > Class 12 > Physics

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Vinay Gautam 6 years, 3 months ago

Post them as ans

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Vinay Gautam 6 years, 3 months ago

Mekko bhi chahiye plz na himanshu

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Kushnoor Kaur 6 years, 3 months ago

Can i get it too

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Arunima Devi 6 years, 3 months ago

Yaaaa plz provide us

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Two parallel charged place containing opposite charge

Posted by Priyanshi Pandey 6 years, 3 months ago

CBSE > Class 12 > Physics

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Mc ltd. Has forfeited 600 equity shares of rs 10 each on non payment of final call rs 3 on each share of the forfeited shares 400 shares have been re issued @ rs 8 pes share fully paid. Pass journals entries.

Posted by Minakshi Sahu 6 years, 3 months ago

CBSE > Class 12 > Accountancy

1 answers

Pallavi Gupta 6 years, 3 months ago

Share capital a/c__________dr 6000 To share final call a/c. 1800 To share forfeiture a/c. 4200 Bank a/c _______________dr 3200 Share forfeiture a/c______dr. 800 To share capital a/c. 4000 Share forfeiture a/c __________dr. 2000 To capital reserve a/c. 2000

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1/sqrootx=

Posted by Akshit Chaudhary 6 years, 3 months ago

CBSE > Class 12 > Mathematics

1 answers

Dinesh Kumar 6 years, 3 months ago

Log&*"%^^

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Find equations of plane passing through the line of intersection of the planes:r.(i+3j)+6=0 and r.(3i-j+4k)=0 whose perpendicular distance from the origin is unity

Posted by Jyothi Jayan 6 years, 3 months ago

CBSE > Class 12 > Mathematics

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Interviews are like thumbprint on the wind pipe . justify the statement

Posted by Shraddha .. 6 years, 3 months ago

CBSE > Class 12 > English Core

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Explain pollen-pistil interaction?

Posted by K@Łp@N@ $Øđh!?? 6 years, 3 months ago

CBSE > Class 12 > Biology

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Raman Brar 6 years, 3 months ago

There are various kind of flower then pollen from any species flower can come on flower but it will not do pollination and this is becoz of interaction that only pollen grain can pollinate which belong to species of flower

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How to study NCERT physics

Posted by Akanksha Dwivedi 6 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Harsh Kumar 6 years, 3 months ago

I think for physics you read S. L. ARORA this book is perfect for physics. I am also using this book.

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A ? 6 years, 3 months ago

Read ncert properly...make short notes...and solve each and every question....

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Define azeotropes

Posted by Bharti Jain 6 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Gaurav Seth 6 years, 3 months ago

Azeotropes are the binary mixtures of solutions that have the same composition in liquid and vapour phases and that have constant boiling points.

A minimum-boiling azeotrope is formed by solutions showing a large positive deviation from Raoult’s law at a specific composition.

Example: An ethanol–water mixture containing approximately 95% ethanol by volume

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2016 question paper answer 1a,b,c,d,3c,d,e

Posted by Sharon Shaji 6 years, 3 months ago

CBSE > Class 12 > Computer Science

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Which colligative property is used to determine molar mass of polymer and why

Posted by Bharti Jain 6 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Gaurav Seth 6 years, 3 months ago

Molecular mass of polymers are obtained by osmotic pressure and it is used because it it is the most suitable coligative property for the determination of higher molar masses as, the osmotic pressure gives more accurate determination of molar mass than the elevation in boiling point method, it is because, when we see the formulas,
We get for elevation in boiling point , ΔT = K_b . m (where m = molality)
So, m = ΔT / K_b
Further, moles of solute = molality(m) x mass of solvent in Kg
Molar mass = mass of unknown molecule/ moles of the unknown molecules
Here, m depends on ΔT , which can vary and so the accurate molar mass is not found.
Whereas, in case of Osmotic pressure(∏) , ∏ = MRT ( M = molarity)
So, M = ∏ /RT
Hence, moles of solute = molality(m) x Volume of solution in L
Molar mass = mass of unknown molecule/ moles of the unknown molecules
Here, we see that every quantity is fixed and so determination of molar mass will be accurate.

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Why microwave are used in aircraft navigation?

Posted by Raman Brar 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Gaurav Seth 6 years, 3 months ago

Microwaves are considered suitable for radar systems used in aircraft navigation because they have a short wavelength range (10^-3 m to 0.3 m), which makes them suitable for long range communication.

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Why does an azeotropic mixture distills without any change in composition

Posted by Bharti Jain 6 years, 3 months ago

CBSE > Class 12 > Chemistry