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 ▸The amplitude of a simple harmonic oscillator has decreased from 40cm to 38cm. What percentage of energy did the harmonic oscillator lose?
Alice drops an apple from a height of 2 m above the ground. Assuming there is no air resistance, what is the speed of the apple when it hits the ground?
Describe how the control rods in a nuclear reactor are used to regulate nuclear fission in a nuclear reactor.
Describe the motion of a moving object with a given Displacement-Time graph. For each section on the graph, indicate the direction of motion and identify if the object is accelerating or not. What would the object's Velocity-Time graph look like?