20.6d Ex2 ON16 P41 Q9 Sketch Induced emf Graph | A2 EM Induction | Cambridge A Level 9702 Physics

[@pudaruthhemchand6254]

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[@ontheway5792]

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[@zzzbhdshjer]

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[@SnehTAMU]

@@zzzbhdshjer bro got it wrong twice lol

[@BOM-j6x]

THANK YOU MISS

[@shahlaanjum9080]

Can't we use lenz law in the last part

[@ontheway5792]

Many thanks Sir for your precious help but would you please solve J12 P41 Q6 and J14 Q7 P41 they are about faraday law and rectification Thanks again for your help

[@zzzbhdshjer]

maam*

[@materialgowrl1220]

Why is induced EMF zero when current is constant, isn't current time graph and EMF time graphs supposed to be same because V=I×R Please help😭😭😭😭

[@bbatroll]

EMF is directly proportional to rate of change of current. Since the current is constant here, i.e. not changing at all over time, the EMF induced will be zero. For e.g. if the current is I = 5A at t = 5s and I = 5A at t = 10s as well, the change produced would be (5 - 5) / (10 - 5) = 0. And since EMF is directly proportional to the change in current per unit time, as stated above, it will also be 0. Miss derived it at this timestamp as well: 16:49 Hope this helps.