A transformer has an input voltage of 4V, an output voltage of 8V and 50 turns on its primary coil. Assuming 100% efficiency, find the number of turns on the secondary coil.
Using Vp/Vs=Np/Ns, we can rearrange to get Ns= (VsNp)/VpSo, Ns = 8*50/4=100 turns.
JW
Related Physics GCSE answers
All answers ▸What is the difference between nuclear fission and fusion?
Why do we say that objects moving in a circle have acceleration even if their speed remains constant?
what is the total resistance of 2 resistors each with resistance 2 ohms in parallel?
Explain the process of nuclear fusion in the Sun.