Semi worked solutions for Light, Electric power and Sound

[cypriottiger]

hmm i said lenz's law seeing as a negative voltage was important
if i drew the circuit as having the line from each resister, so connecting them directly, is that ok? i actually stated next to it that the resisters must be in series.

[Whatlol]

for question 10.
didnt you have to divide the time by 4 first? because it was an average emf?

no because they told you the field was decreasing over a period. it didn't say the coil was rotated with a period of x seconds.

[3Xamz]

for question 10.
didnt you have to divide the time by 4 first? because it was an average emf?

Why 4?

[Whatlol]

hmm i said lenz's law seeing as a negative voltage was important
if i drew the circuit as having the line from each resister, so connecting them directly, is that ok? i actually stated next to it that the resisters must be in series.

Dont take my answers as the actual answers. I didnt even write Faraday's law on my exam.
And im not quite sure what you mean with the circuit?

[brayden]

for question 10.
didnt you have to divide the time by 4 first? because it was an average emf?

The time given was the time it took to go from a maximum to a minimum flux though. So you didn't need to change it.

i thought it said the period was .012?

[Whatlol]

for question 10.
didnt you have to divide the time by 4 first? because it was an average emf?

The time given was the time it took to go from a maximum to a minimum flux though. So you didn't need to change it.

i thought it said the period was .012?

To quote the question " The magnetic field is now reduced to zero over a period of 0.012s"

[Linkage1992]

It said the coil rotated from maximum to 0 in a period 0.012 seconds. Confusing wording, yes.
So you didn't have to divide by 4.

[Shem]

I can't download this :S

What should I be viewing them under? thanks

what happens when you click on it ?

A pop up appears with open with or save.
What should i be opening this with?

[Whatlol]

I can't download this :S

What should I be viewing them under? thanks

what happens when you click on it ?

A pop up appears with open with or save.
What should i be opening this with?

its a microsoft word document, save it to your computer then try open it if you have word.

[cypriottiger]

for q10, would i get 1 mark for statng that the wavelengths are equal?

[Whatlol]

for q10, would i get 1 mark for statng that the wavelengths are equal?

not sure to be honest, possibly

[coolrunnings]

thanks mate for this, much appreciated

[Whatlol]

thanks mate for this, much appreciated

no problems.

[cypriottiger]

thanks

[crunk]

I'm bending over for you now "whatlol" you are messiah.. note, please don't take this bending as sexual.