Physics Question ( 31 )

[Sarah Jawrdawi]

In the electricity question, was the potential difference 12 or 6?

 

[roubair ashraf]

In the electricity question, was the potential difference 1 or 0.5?

12v

 

[Sarah Jawrdawi]

12v

I put 6 and many people said I was correct but idk :/
I had 12 first but I realized every 2 were connected in series

 

[Wolfgangs]

I wrote 12V, but I was confused since the circuit was confusing XP. Did they upload the PDF of the paper like Math here? Since it would be more useful to discuss with them/

 

[Wolfgangs]

Plus, we can't simply say it is 6V, because the voltage is not usually equally divided to the bulbs. Also, we don't have the current only the resistance so we can't simply it is 6V in that case Xp. Anyway, I'm still confused and idk whether mine is correct too.

 

[Sarah Jawrdawi]

Plus, we can't simply say it is 6V, because the voltage is not usually equally divided to the bulbs. Also, we don't have the current only the resistance so we can't simply it is 6V in that case Xp. Anyway, I'm still confused and idk whether mine is correct too.

I don't know because it was a parallel circuit but each 2 lamps were connected in series... That's why I put 6 in the end!

 

[samar444]

what about the echo question?

 

[Wolfgangs]

How many marks is this voltage thing for? I hope it is not more than 2. Also, how many marks for the current one?

 

[Wolfgangs]

I drew the circuit right now and noticed that they were all in parallel. If you notice that the 12 resistance bulbs are in one section and the other 4 resistance is arranged in another section. These two sections are in parallels and in these sections each bulb is arranged in parallel. So 12V each gets.

 

[roubair ashraf]

what about the echo question?

312.5m/s

 

[Wolfgangs]

I got 68/80 in Paper 31 and 36/40 in Paper 61. So, do you think I can still score A* or no?

 

[Sarah Jawrdawi]

I got 68/80 in Paper 31 and 36/40 in Paper 61. So, do you think I can still score A* or no?

Much more than enough

 

[Wolfgangs]

Much more than enough

So, you mean that A* is still possible in this case or not? Please give me a better reply XP.

 

[rahma1997]

so wat is the grade boundary for the A* like wats the overall mark for an A*

 

[rahma1997]

if i got 63/80 is tht an A ??

 

[ahmed soliman]

plz can anyone answer me !!!!
the left side of the wire in induction question force direction was anti
right???

 

[God Help]

Guys how dd u know ur grade I really need to see the question paper

 

[Sarah Jawrdawi]

So, you mean that A* is still possible in this case or not? Please give me a better reply XP.

Yes as long as you do well in the other papers too

 

[Wolfgangs]

plz can anyone answer me !!!!
the left side of the wire in induction question force direction was anti
right???

The arrow of the force faces upwards. So, ya it is anticlockwise. Make sure that you keep an upward arrow in it.

 

[Wolfgangs]

Guys for density is it okay to wrote - Density tells how heavy something is? Since I forgot to mention the volume and mass.