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i know that IIT dosen't have electrnics is syllabus, but its just a physics project that i'm doing in school. is it all right???????

please tell me if this circuit is all right. will the relay give an output is the resistance of the thermostat becomes low????

R1- 10K resistor

R2 - 470 Ohm resistor

R3 - 330K resistor

P1- 20K trimmer pot

D1 - 1N4001 diode rectifier

D2 - 1N4001 diode rectifier

Q1 - 2N2222, transistor NPN

Q2 - 2N3904, transistor NPN

Re1 - 9 volt relay 1 Amp

the solubility product of Mg(OH)2 is 1.96E-11 at room temp. what will be the pH of a saturated soln of the comp.???????

I'm surprised that none of you have suggested RC MUKERJEE. Obviously it dos not have any theory, but its problems and Examples are great

I agree with als. Capacitor is the reason, not the resistances.

Arre yaar, why think so much????????

Just apply Kirchoff's loop law and you'll get it in an instant. Ask feynmann if you have any problem.

r<<R means that we have to consider the smaller coil as a needle, and then use ampere's equivalence law on the bigger loop. am trying, will post when done.

Does anyone know why theres no nobel prize in mathematics???????????

Thanks to all those who have contributed, but none of the methods are better than the one given in A.Dasgupta. Thums Up to both nikhilesh n kaymant, who painstakingly typed out the solution.

THANKS TO ALL.................

I have seen the worked out example in A.Dasgupta, but its too long and tedious. Is there any shorter way of doing it???????????

Salutes guaranteed for anyone who shows me a better method!!!!!!!!!!!!!!!!!!!!!

Is there any news of the IITs introducing screening and mains again from this year?

Can I get into the IITs to study honours, BSc, MSc ? If yes, then how? is it through the regular JEE or is there any other admission procedure?

Please do not post vague answers.

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a dasgupta and ncert books are a deadly combination. do them.

i am not interested in engineering. can i study pure chem/phy from the IITs??? if yes how. what are the req????

wen u start paddlng 2 move the cycle forward, the back wheel tries to rotate n the cycle moves forward due to friction d forward directn. this forces the front whell to rotate. but this time the friction is in the backward directn.

But when the cycle is already in motion, then both frictn is in the forward directn

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