A transformer is required to supply 12 V_rms to operate a toy train set from a 240 V_rms. If the number of turns in the in the secondary coil is 100, calculate the number of turns required in the primary coil

Myschool Kelly

10 years ago

Thanks for your observation. Correction has been made.

Hillytutsky

5 years ago

240*100
24000/12 =2000
the ans is option c

Tobscollins

10 years ago

Option A is wrong, d transformer supply 12v to a toy train, d transformer need 240v to do Dis, a step down transformer is needed, a toy train must sure hv low voltage, definitely 12/240*100/p=24000/12=2000

regony600

9 years ago

Option 'd' is the correct answer pls

ejinwaconfidence@gmail.com

10 years ago

Hey....there was no 240 in the question o....myschool.com

Anzyumoh

4 years ago

A is correct

temiuel

9 years ago

Option'D' 2000 is the correct ans bcos d transformer received 240-primary emf and supplied 12-secondary emf