Physics P42 coming soon

[InnocentAngel]

A thread to discuss physics specifically P4

 

[InnocentAngel]

I read in the examiners' reprt that : An induced emf does not always give rise to an induced current . But then , why do all the teachers teach us that emf , current , voltage in chapter electromagnetic induction mean the same thing ? :/

 

[AhShun]

That's true: induced e.m.f does not always give rise to induced current such as in incomplete circuit

 

[W-inx]

There is also something which says a "it acts as a return" which is usually b.s sometimes xD

 

[bamteck]

http://www.xtremepapers.com/community/threads/physics-p5-design-worked-solutions.21270/

 

[InnocentAngel]

That's true: induced e.m.f does not always give rise to induced current such as in incomplete circuit

could you elaborate pleaseeee? It's very blurred in my mind .

 

[AhShun]

current only flows in a complete circuit. for emf,even though the circuit is broken/incomplete we still get it

therefore an induced emf in a complete circuit gives rise to current
induced emf in an incomplete circuit do not give current... that's why :"An induced emf does not always give rise to an induced current"

 

[InnocentAngel]

Thaaanks now i gt it