Igcse physics paper 1 june 2023 edexcel | exam chat

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i wrote resistance double current decrease ... and the voltage stay same therefore current must be decrease feels like I am wrong tho

yea resistance doesn't increase, it decreases as there are more loops in the circuit thus more routes for the current to flow through thus current increases

Reply 41

Shueb6123

why did they give us marks for stating the equation even tho we had the formula sheet it was so weird. All the equation stuff was also so many marks

Reply 42

Db3173

Original post by pewpepwpe

i wrote resistance double current decrease ... and the voltage stay same therefore current must be decrease feels like I am wrong tho

That’s what I said

Reply 43

catsforever1154

Original post by Shueb6123

why did they give us marks for stating the equation even tho we had the formula sheet it was so weird. All the equation stuff was also so many marks

ikr it was like they just stuck a formula sheet there lol

Reply 44

themonke

What did everyone put for why the wavelength was lower in the rock than in the soil?

Reply 45

224411

I guessed because rock is more denser than soil and waves travel slower in rock. but just a guess

Original post by themonke

What did everyone put for why the wavelength was lower in the rock than in the soil?

Reply 46

themonke

Original post by 224411

I guessed because rock is more denser than soil and waves travel slower in rock. but just a guess

Same and then I said that the frequency of the waves is constant so if λ=v/f then the wavelength goes down as well

Reply 47

catsforever1154

Original post by themonke

Same and then I said that the frequency of the waves is constant so if λ=v/f then the wavelength goes down as well

yeah thats what i said too

Reply 48

ursrose

(Original post by Shueb6123)why did they give us marks for stating the equation even tho we had the formula sheet it was so weird. All the equation stuff was also so many marks
Because they wrote last year, before they decided to give us the formula sheets

Reply 49

Pujy123

what did you get for the wavelength calculation question?

Reply 50

kmat1893

Original post by Pujy123

what did you get for the wavelength calculation question?

7.6 meters i think

Reply 51

Djdb2007

This is from a past exam question

(edited 11 months ago)

Reply 52

j_ritz

what did you guys say for the question about why there was an ac current in the gold ?

Reply 53

kmat1893

Original post by j_ritz

what did you guys say for the question about why there was an ac current in the gold ?

Voltage is induced, current produces a magnetic field and it cuts through another magnetic field.

I went through the paper with my teacher and that is what it said