A transformer which can produce 8V from a 240v a.c. supply, has an efficiency of 80%. If the current in the secondary coil is 15A, calculate the current in the primary coil.

Sammyporsche123

2 years ago

I keep getting 0.5

Ololadefabuyi

3 months ago

bn

frickyfausty

3 years ago

E=IsVs/IpVp*100; 80=(15*8/IP*240)*100; IP=0.625A

prestigiousemirate

1 year ago

can u please add an explanation to this question......u just put the formula without parameter or explanation

Mikel27

1 year ago

U guys just brought the formular and I can't seem to figure out which number is for which letter

montty

10 years ago

Ans is A

CRIMHAZ

3 years ago

Correct 💯

Seun9878

2 years ago

even me

tommy j

11 years ago

I chose the same answer. Just as one you got in working

Myschool Kelly

10 years ago

Correction has been made. Thanks for your contributions.

Seun9878

2 years ago

i keep getting 0.5