i dont understand the whole sentence... i copy it from the syllabus...I am asking kay wat dont u understand about it?As in wat is ur question?Maybe I can help
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i dont understand the whole sentence... i copy it from the syllabus...I am asking kay wat dont u understand about it?As in wat is ur question?Maybe I can help
Take it easy That phrase is not really important.Just remember one thing-the resistance of thermister increases at low temperature and it has low resiastance at high temperature .i dont understand the whole sentence... i copy it from the syllabus...
they usually donot check for exact wordings you only have to convey ur meaning clearlyhttp://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Physics (5054)/5054_s11_qp_12.pdf
confused between b and c of question 35 plz clarify
thanks!Take it easy That phrase is not really important.Just remember one thing-the resistance of thermister increases at low temperature and it has low resiastance at high temperature .
26=A
26 is a i thhink and 30 D 32B and 39 B
wang y do u have to contradict me always?26=A
30=B
32=B
39=B?
correct?
huh?they usually donot check for exact wordings you only have to convey ur meaning clearly
sorry... next time i dont reply... just watch and learn..wang y do u have to contradict me always?
in 26,resistance increases as temp. rises so a and b are possible choices.then graph B shows current decreasing which is right as current is inversely propotional to resistance.
26-The answer is B as the resistance increases with time and current decreases.
30-B this is because the Earth wire which is connected to the metal case originally is not connected to the right place,hence the case will become live.
32-B cuz I think reversing d.c supply and poles of magnet will affect it.
39-B
Correct, you both -_-in 26,resistance increases as temp. rises so a and b are possible choices.then graph B shows current decreasing which is right as current is inversely propotional to resistance.
in 30,metal case is live because live wire becomes in contact with metal case.
in 32.option B as changes reversing direction of coil rotation are reversing d.c. supply or poles of magnet.
in39,there are 3 half lives so total time\3 =1 minute.
thankyou i wish i could hit like button twicein 26,resistance increases as temp. rises so a and b are possible choices.then graph B shows current decreasing which is right as current is inversely propotional to resistance.
in 30,metal case is live because live wire becomes in contact with metal case.
in 32.option B as changes reversing direction of coil rotation are reversing d.c. supply or poles of magnet.
in39,there are 3 half lives so total time\3 =1 minute.
thanku26-The answer is B as the resistance increases with time and current decreases.
30-B this is because the Earth wire which is connected to the metal case originally is not connected to the right place,hence the case will become live.
32-B cuz I think reversing d.c supply and poles of magnet will affect it.
39-B
Welcome Best of luck for tomorrowthanku
correct.nice job.26-The answer is B as the resistance increases with time and current decreases.
30-B this is because the Earth wire which is connected to the metal case originally is not connected to the right place,hence the case will become live.
32-B cuz I think reversing d.c supply and poles of magnet will affect it.
39-B
hahaha..no prob..thankyou i wish i could hit like button twice
Tycorrect.nice job.
why can birds stand on overhead transmission lines without suffering any harm?
-their bodies are of high resistance?
-good insulator feet
-no potential difference b/w feet
- spaces b/w feathers act as insulators..
which one? shouldnt the reason be that they arent connected to earth so thats why? :s
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