A generator is constructed by rotating a coil of N turns in a magnetic field B at a frequency f. The internal resistance of the coil is R and the cross sectional area of the coil is A. Choose the correct response for each of the following statements. True or False
The average induced EMF doubles if the area A is doubled.
The average induced EMF doubles if the resistance R is doubled.
The average induced EMF doubles if the frequency f is doubled.
The average induced EMF doubles if the magnetic field B is doubled.
The maximum induced EMF occurs when the coil is rotated about the axis of t

- anonymous

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- shamim

1 is true

- anonymous

ok,go on

- shamim

3 is true

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## More answers

- shamim

4 is true

- shamim

axis of t means

- shamim

5 is not clear to me

- shamim

but 5 may b true

- shamim

i guessed

- anonymous

The maximum induced EMF occurs when the coil is rotated about the axis of the coil.

- shamim

ya 5 is true

- anonymous

thats 5

- shamim

now i wanna talk abt question 2

- anonymous

what about this
The maximum induced EMF occurs when the coil is rotated about an axis parallel to the magnetic field lines.

- shamim

ya its right

- shamim

i know the curent creats for the rate of change of magnetic field. if the rate of change of magnetic field is higher then induced current will b higher

- shamim

coil shoul cover magnetic field lines to create induced current

- shamim

i think if the coil rotate along its axis then those magnetic field lines will go through the coil

- shamim

and the rate of change of magnetic field will b higher

- shamim

m i right

- shamim

anyway i think ur question 2 is false

- shamim

induced EMF does not depend on the resitance

- shamim

of coil

- anonymous

i dont know much about this topic,i tried false and it didnt work,which means some other answer might be wrong

- shamim

r u telling abt ur answer 2

- anonymous

yes

- shamim

so u r telling ur answer 2 is right

- shamim

then i wanna try it later

- anonymous

i havent tried true

- shamim

i c

- anonymous

so u saying all of them is true,except 2?

- shamim

ya

- anonymous

IS SAYING WRONG ANSWER

- shamim

do u hv right answer

- anonymous

NOPE

- shamim

ok

- shamim

ur answer 3 and 2 are false

- shamim

try it now

- anonymous

is still wrong

- shamim

ha ha ha

- shamim

sorry

- anonymous

no problem

- shamim

then try 2,3,5 false

- anonymous

haha wrong :(

- shamim

ha ha ha

- shamim

so sory

- shamim

if u know the right answer , let me know plz

- shamim

and i wanna try it later

- anonymous

ok sure

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