Question

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

Answer 1

1 is true

Answer 2

ok,go on

Answer 3

3 is true

Answer 4

4 is true

Answer 5

axis of t means

Answer 6

5 is not clear to me

Answer 7

but 5 may b true

Answer 8

i guessed

Answer 9

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

Answer 10

ya 5 is true

Answer 11

thats 5

Answer 12

now i wanna talk abt question 2

Answer 13

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

Answer 14

ya its right

Answer 15

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

Answer 16

coil shoul cover magnetic field lines to create induced current

Answer 17

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

Answer 18

and the rate of change of magnetic field will b higher

Answer 19

m i right

Answer 20

anyway i think ur question 2 is false

Answer 21

induced EMF does not depend on the resitance

Answer 22

of coil

Answer 23

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

Answer 24

r u telling abt ur answer 2

Answer 25

yes

Answer 26

so u r telling ur answer 2 is right

Answer 27

then i wanna try it later

Answer 28

i havent tried true

Answer 29

i c

Answer 30

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

Answer 31

ya

Answer 32

IS SAYING WRONG ANSWER

Answer 33

do u hv right answer

Answer 34

NOPE

Answer 35

ok

Answer 36

ur answer 3 and 2 are false

Answer 37

try it now

Answer 38

is still wrong

Answer 39

ha ha ha

Answer 40

sorry

Answer 41

no problem

Answer 42

then try 2,3,5 false

Answer 43

haha wrong :(

Answer 44

ha ha ha

Answer 45

so sory

Answer 46

if u know the right answer , let me know plz

Answer 47

and i wanna try it later

Answer 48

ok sure