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I have a question. Please see the attachment and answer with explanation.
 2 years ago
 2 years ago
I have a question. Please see the attachment and answer with explanation.
 2 years ago
 2 years ago

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PreethaBest ResponseYou've already chosen the best response.1
Hi Aadarsh, tell me what relationships have you learnt that would help you solve this?
 2 years ago

PreethaBest ResponseYou've already chosen the best response.1
And what do you know about parallel circuits and series?
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
In series connection, resistors are joined end to end. Current remains same. Effective resistance is greater than highest individual resistance.
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
In parallel, just the opposite.
 2 years ago

shaan_iitkBest ResponseYou've already chosen the best response.2
30 B option is correct... this is assuming all batteries have equal EMF..
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
Question Number 49 also
 2 years ago

PreethaBest ResponseYou've already chosen the best response.1
Shaan, can you lead Aadarsh through the answer?
 2 years ago

PreethaBest ResponseYou've already chosen the best response.1
He will not be able to answer the next Q till he understands your logic.
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
For question 30, can't D be the answer?
 2 years ago

shaan_iitkBest ResponseYou've already chosen the best response.2
Non ..circuit D provides EMF of V while circuit A provides EMF of 3V ...
 2 years ago

shaan_iitkBest ResponseYou've already chosen the best response.2
okk see I will go one by one.. 1) cannot be correct because circuit A provides more EMF assuming resistance to be the same we bulb would glow brighter in A. 2) is correct because the circuit load is distributed among the batteries and also the net power consumption by bulb in circuit B is lesser than A 3) is incorrect because yet again the circuit load is distributed in B and power consumption is less in B 4) is incorrect because of reasons already given
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
Thanks a lot. Now please look at the other questions(41 and 49).
 2 years ago

PreethaBest ResponseYou've already chosen the best response.1
Aadars, why don't you start working on it here. Shan will help, but yo should get started. How else will you get it during the test?
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
Okay maaam. I am trying my best.
 2 years ago

PreethaBest ResponseYou've already chosen the best response.1
Shaan, good work. Thanks for working through this. How is life at IITk?
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
I think question number 41  "A" is correct, and for question 49, "A" is correct. Not sure.
 2 years ago

shaan_iitkBest ResponseYou've already chosen the best response.2
Lenz's law does not violate principle of energy hence the assertion is wrong for 41) ... for 41 D is the correct answer..
 2 years ago

shaan_iitkBest ResponseYou've already chosen the best response.2
Hi preetha .. I am presently in IIMA ..I passed out of IITK
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
Ooooooo. Okay okay. Got it. 49?
 2 years ago

PreethaBest ResponseYou've already chosen the best response.1
Great. Thats the fast track to fame and fortune. You should write that in your profile.
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
1) http://openstudy.com/study#/updates/4f256451e4b0a2a9c266e5ab
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
2) http://openstudy.com/study#/updates/4f256099e4b0a2a9c266e43f
 2 years ago

shaan_iitkBest ResponseYou've already chosen the best response.2
do you know why lenz's law is in tune with conservation of energy? think it has a very simple solution .. think logically.. hint is that induced EMF is such that it OPPOSES the change in flux..
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
I have read the above statement. But completely forgot about the first assumption.
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
question number 49? Is "A" correct?
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
Okay, did u see the other 2 links?
 2 years ago

shaan_iitkBest ResponseYou've already chosen the best response.2
Google this .. I dunno about this question ... but pupil expands when there is dim light (to get more light ) .. somewhat like aperture of a camera but I am not sure whether it contracts when trying to see a distant object...
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
Okay Then. Wat about ur opinion about the other 2 links?
 2 years ago

PreethaBest ResponseYou've already chosen the best response.1
I think it is A. The pupil restricts the amount of light entering the eye. When you go from dark to light, it responds to protect the eye from an overload to the system
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
Yeah, for the same analogy, I too wrote "A". Are u sure? Please see the links numbered 1 and 2.
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
Plzzzzzzzzzzzzzzzzzzzzzzzzzzz do see the links and help.
 2 years ago

PreethaBest ResponseYou've already chosen the best response.1
I answered your yellow light question. Where are these questions from? What level are you? School? College?
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
I am in school, grade 10, CBSE from INDIA. THese questions are from NSTSE Stage 2.
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
I got it. the option for the yellow question is "D". See this link: http://www.scribd.com/sadiq_noori/d/76372104QuizQuestionsandAnswersCurrentAffairsQuizQuestions7
 2 years ago

AadarshBest ResponseYou've already chosen the best response.0
Atmosphere question? Plzzzzzzzzz reply.
 2 years ago
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