Biology; Chemistry; Physics: Post your doubts here!

[a.abid]

do u mean that diode also have specified anode and cathode. ??

ofcourse.cathode is negative,anode is positive.the triangle in the symbol represents anode nd line cathode.

 

[SALT]

i kno tht the discussion is long over but since we still hav to give our chem, a point to note is tht in metals it is wrong to say tht no electrons r in their orbits....its just the VALENCE electrons tht get delocalised, but yeah electrons do conduct heat...

 

[MustafaMotani]

ofcourse.cathode is negative,anode is positive.the triangle in the symbol represents anode nd line cathode.

that was the thing I didnt know that triangle represents cathode and anode... our teacher never told us... besides I knew cathode is negative and anode is positive

 

[MustafaMotani]

i kno tht the discussion is long over but since we still hav to give our chem, a point to note is tht in metals it is wrong to say tht no electrons r in their orbits....its just the VALENCE electrons tht get delocalised, but yeah electrons do conduct heat...

metals are elements which forms positive ions.... simple and easy

 

[a.abid]

that was the thing I didnt know that triangle represents cathode and anode... our teacher never told us... besides I knew cathode is negative and anode is positive

its not even necessary bus just remember the fact that cathode is negative and anode is positive

 

[MustafaMotani]

Q4/5. Why the pointer reading ammeter/voltmeter is gently tapped before taking a reading?​

Ans: To reduce the friction between the needle and the pivot
How is that.?​

 

[MustafaMotani]

its not even necessary bus just remember the fact that cathode is negative and anode is positive

 

[a.abid]

Q4/5. Why the pointer reading ammeter/voltmeter is gently tapped before taking a reading?​

Ans: To reduce the friction between the needle and the pivot​

How is that.?​

really??? wat we've done is that sometimes the ammeter/voltmeter gets stuck nd reading is not taken,thus it is tapped to reduce friction...i guess

 

[ashiqbal]

Q4/5. Why the pointer reading ammeter/voltmeter is gently tapped before taking a reading?​

Ans: To reduce the friction between the needle and the pivot​

How is that.?​

it is so the needle bumps up a little from its pivot so that it moves.
remember that tapping is to reduce friction!

 

[MustafaMotani]

really??? wat we've done is that sometimes the ammeter/voltmeter gets stuck nd reading is not taken,thus it is tapped to reduce friction...i guess

I would have guessed the same..

 

[a.abid]

I would have guessed the same..

 

[MustafaMotani]

 

[a.abid]

putting up a "" won't make you cool anyways

 

[daredevil]

yes i have a very round about way, but i will post it after our this deadly week!!!

oh great!! plz remembr to tag me in the post too wen u post it bcuz i'm having the same problem w/ transformation matries. i can't seem to learn them so i have to work them out for every question and its HECTIC to say the least :|

 

[MustafaMotani]

putting up a "" won't make you cool anyways

who asked u .. ??

 

[a.abid]

oh great!! plz remembr to tag me in the post too wen u post it bcuz i'm having the same problem w/ transformation matries. i can't seem to learn them so i have to work them out for every question and its HECTIC to say the least :|

Agreed.

 

[a.abid]

who asked u .. ??

Nope. It was just a piece of advice Now its ur own choice aap jo marzi smjho

 

[MustafaMotani]

Nope. It was just a piece of advice Now its ur own choice aap jo marzi smjho

OhK

 

[ashiqbal]

oh great!! plz remembr to tag me in the post too wen u post it bcuz i'm having the same problem w/ transformation matries. i can't seem to learn them so i have to work them out for every question and its HECTIC to say the least :|

it is a very strange method, nevertheless, i will post it, who knows it might help someone!

 

[A star]

Agreed.

please y dont you just go to google chrome type transformation matrix and see all the types that we will have to learn for exams. gosh havent you tried it before