A coil is connected to an analogue centre zero ammeter. A magnet is dropped (North pole first) so that it falls vertically and completely through the coil. What would be observe on the ammeter?

The ammeter's needle would first be deflected one way, then as the direction of the current reversed, it would deflect the other way.

LV

Related Physics A Level answers

All answers ▸

In an electric propulsion system, alpha particles are accelerated through a potential difference of 100kV at an average rate of 10^20 alpha particles per second. Calculate the average thrust the system can provide.


How would you integrate ln(x)


a solar cell of area 2m^2 has maximum a power output per unit area of 20W/m^2 . if four solar cells are used together at once, how much energy is release in 2 mins at max power output?


Explain how and why the diffraction pattern of electrons passing through a slit depends on their momentum.