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 equation linking Power, Time, and energy? and Calculate the work done by a cyclist when his power output is 200 W for 1800 seconds?.
A student investigated how the resistance of a piece of nichrome wire varies box with length.Describe how the student would obtain the data needed for the investigation. Your answer should include a risk assessment for one hazard in the investigation.
What are the definitions of a)voltage and b)current?
If a ball is thrown at a velocity of 5m/s, what height does it reach?