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Re: Nov 8, 2008 was an easy test..!!
Posted: Mon Nov 10, 2008 12:26 am
by TrueBLUE
cato88 wrote:temujin_cosmobug wrote:
In the test however I found one mean mean question, a Delta-wye transformation, I have taken a lot of electronics classes but, i couldnt remember the formula (it was easy considering all the resistors were the same value, but mean because that was completely unexpected, and more relating to electrical engineering than physics ). I know not every one has the same question set, did anyone else also get a question relating to a delta- wye transformation?
I felt as if an electrical engineering background would be more useful than a physics background. If there were more quantum questions I would change my mind. Ann EE student would have taken classical mech and E&M.
Hey, I think u guys are making the problem more difficult than it really is. you just need to remember that the resistors in the middle are defunct as potential diff. across them is 0. No need to use delta-wye and such hi-fi stuffs
Re: Nov 8, 2008 was an easy test..!!
Posted: Mon Nov 10, 2008 9:25 am
by 99percent
TrueBLUE wrote:cato88 wrote:temujin_cosmobug wrote:
In the test however I found one mean mean question, a Delta-wye transformation, I have taken a lot of electronics classes but, i couldnt remember the formula (it was easy considering all the resistors were the same value, but mean because that was completely unexpected, and more relating to electrical engineering than physics ). I know not every one has the same question set, did anyone else also get a question relating to a delta- wye transformation?
I felt as if an electrical engineering background would be more useful than a physics background. If there were more quantum questions I would change my mind. Ann EE student would have taken classical mech and E&M.
Hey, I think u guys are making the problem more difficult than it really is. you just need to remember that the resistors in the middle are defunct as potential diff. across them is 0. No need to use delta-wye and such hi-fi stuffs
I agree with TrueBLUE, there was no Delta-Wye transformation necessary in that problem. That circuit can be seen as an extension of Wheatstone bridge, with six branches instead of four. So, the potential drop across them (and hence the current) is zero. Thus, the equivalent resistance of that circuit was 2R/3...
Re: Nov 8, 2008 was an easy test..!!
Posted: Mon Nov 10, 2008 12:12 pm
by lallooprasad
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Re: Nov 8, 2008 was an easy test..!!
Posted: Mon Nov 10, 2008 3:01 pm
by astrofan
I didn't finish as many questions as I liked, but I was happy about the content. This astrofan was very happy with the specialty problems ETS decided to include.
I am also glad I took that cosmology course; I am still in shock that the question came up.
Re: Nov 8, 2008 was an easy test..!!
Posted: Mon Nov 10, 2008 3:45 pm
by rohit
i was flummoxed by that question about how much more melting ice in the cavity heated by EM waves .. WTF was that about ?!?
and diamond structure ??!!? WHY WHY WHY !!??!
Re: Nov 8, 2008 was an easy test..!!
Posted: Mon Nov 10, 2008 11:44 pm
by cato88
rohit wrote:i was flummoxed by that question about how much more
melting ice ..
and diamond structure ??!!? WHY WHY WHY !!??!
I think the diamond prob was just another one of those you either knew it or you didnt problems.
Re: Nov 8, 2008 was an easy test..!!
Posted: Wed Nov 12, 2008 10:29 am
by rohit
well 99percent, i dont remember u , but i came in room 5 after most people had settled down, i was wearin blue jeans/sweater , tall ,very fair, huge spectacles.. i thought that annoying invigilator started after 9 o clock but ended early, damn her ... maybe i'm wrong