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Describe the generator effect and its use within transformers (6 marks)

The generator effect is the induction of a potential difference (leading to a current) when a wire experiences a change in magnetic field) (2 marks)In a transformer, there are primary and secondary coils....

Answered by Tobias M. Physics tutor
13590 Views

Show that a mass on a spring obeys simple harmonic motion.

Let the mass be m. Let the natural length of the spring be L. The defining equation of simple harmonic motion (SHM) is that the acceleration is proportional to, and acts in the opposite ...

Answered by Tia J. Physics tutor
6018 Views

What's the value of the normal force of a vehicle on a convex bridge? What about a concave one?

For a vechicle placed on a convex bridge: N=mg-Fcf. For a vehicle placed on a concave bridge: N=mg+Fcf. Where mg is the gravitational force and Fcf is the centrifugal forc...

Answered by Dan M. Physics tutor
2220 Views

What is the difference between potential energy and potential?

Potential is the potential energy per unit at a certain location. For example in a electric field the electric potential energy depends on both the location of the charge in the field and the charge we ar...

Answered by Edward T. Physics tutor
1818 Views

If a race car completed a full lap and is where he started, why is his average velocity zero but his average speed isn’t?

Velocity is displacement over time, whereas speed is distance over time. Displacement is the shortest distance from point A to point B(a straight line). In this case, the starting point(point A) is the en...

Answered by Osman O. Physics tutor
6672 Views

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