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Physics Predictions/Thoughts (1 Viewer)

Rattlehead15

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can some explain 16, and isn't 10 B because field is parallel
For 10 its D because the force on XY is the same all the way round because its a 2D side always perpendicular to the field. Q16 I guessed D and got it right
 

abelsj01

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But for ii , it asked for the max emf in the ring with the incomplete flux linkage , so wouldn’t it just be 0???
i was banking on them not asking a trick question so i didnt put zero but flux is independent of current anyways so there would be an emf induced
 

matiaschong123

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i was banking on them not asking a trick question so i didnt put zero but flux is independent of current anyways so there would be an emf induced
i won’t lie i’m not 100% sure but ig we will find out , i thought it was just a trick question ngl
 

Jamesssss10

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What was 23 b, did you just do E=hc/lambda and minus the wavelengths on the denominator?
 

Rattlehead15

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What was 23 b, did you just do E=hc/lambda and minus the wavelengths on the denominator?
I just put in whatever the lower of the two given wavelengths was, I dont remember the question so I may have done it wrong but thats what I remember doing
 

jackarana

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I just put in whatever the lower of the two given wavelengths was, I dont remember the question so I may have done it wrong but thats what I remember doing
don't you just convert max wavelength to frequency and then convert to energy
 

notme123

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Thought q20 is A cos the universe expansion was accelerating because as the distance increases the velocity increases proportional, so it’s accelerating.
apparantly the rate of expansion is accelerating. literally third derivative type of thing
 

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