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AQA A Level Physics Paper 1 7408/1 - 26 May 2022 [Exam Chat]

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what did people get for the last electricity question? as in when you slid the contact to the right, even when the resistor was in parallel would it still make the bulb dimmer? because total resistance of the parallel combination increases hence current decreases? idk

When in parallel, when resistance increases, less current flows through the resistor and more flows through the bulb, so the bulb gets brighter

Reply 581

flyinghippo999

Original post by abdul 580

yh thats what i did because moments= force x perpendicular distance and if you draw a line perpendicular to 0.95

Yeah we’re thinking the same thing but I keep hearing back that it’s not right .. but who knows.. in my opinion it makes sense but idk maybe there’s 2 methods.. I can’t actually remember what the moment was when u calculate it like that so

Reply 582

Chep

Original post by TheDarkestShark

From what I've been reading from other people, they have put W+.

Yeah I just remembered it was beta plus decay, and w plus boson

Reply 583

Sorryidontgetit

Original post by Happy36900000

Total current decreases, which reduces internal resistance, so the terminal pd is greater. And then since the lamp is in parallel it has the whole terminal pd across it.

agh i see now

Reply 584

StudentJon.

For paper 2, do you think any topics of P1 will come up?

Reply 585

ummmmmm44

I put it gets dimmer for both, but the second one will not dim as much as first one

Reply 586

Kieran5504

what were each of the 6 main questions out of, the gate question was out of 9? etc? does anyone remember?

Reply 587

Magmadude

Original post by ummmmmm44

I put it gets dimmer for both, but the second one will not dim as much as first one

Oh I put dimmer for in series brighter when parallel

Reply 588

Anas Rasoul

It was anti up and a down quark. That’s makes a negative kaon which was the only one that could actually exist. Could be horribly wrong tho

Reply 589

abdul 580

what did you guys get for the force on the horizontal component of C when we had angles of 55 and the weight of the load

Reply 590

Ellzbells

What do people think grade boundaries are going to be like?

Reply 591

MKUltraWorked

Original post by Magmadude

Oh I put dimmer for in series brighter when parallel

I put dimmer in series since resistance increases when the length is extended so that wire would take up a larger share of the total PD. For the resistor in parallel, I put the lamp will get brighter. The resistance increasing across the variable resistor would decrease the flow of charge carriers through that loop, which would thus increase the flow of charge carriers through the lamp itself. Could be wrong but idk anymore lol.