A-level Physics · Transformers

Transformer turns and efficiency

Use Vs/Vp = Ns/Np for voltage or turns, and efficiency = (IsVs)/(IpVp) for a real transformer.

0 correct out of 0Streak: 0

Question 1

An ideal transformer is to convert a 240 V supply to 60 V. The primary coil has 2000 turns. Calculate the number of turns needed on the secondary coil. Give your answer as a whole number.

turns

You can type 4.53, 3.2e-5, 3.2 × 10^-5 or 7/3.

Your progress is kept on this device only. Nothing you type is sent to us.

Stop spending Sunday on Monday's lesson.

Free to start, no card. Your first lesson is about two minutes away.

Start free