I always believed that a Henry was a metric  horse's a*** ......

 Follow ..... kg.m2 / s².A²


Is this your homework?

Legh

I'll start the ball rolling with Q1. Everybody knows that when you turn a motor on a squirrel starts running round and round in its cage. Unfortunately, sometimes they escape. Then the motor doesn't go round any more and if they have chewed through the wires, smoke may leak out. ? ?

.1. What electrical device houses a rotating squirrel?

Agree with Chris - a not quite synchronous motor, could be shaded pole or polyphase. The current in the bars of the cage are at a frequency that is the difference of the freq of the AC applied, and AC pole rate, i,e.  the revs times no of poles. - this difference frequency is the so called 'slip', and is typically 2-10 Hz on a 50Hz machine depends on load.


2. A heating element draws 10 Amps. on a 230 Volt supply. What power is it rated at?

I'll leave this for Zs and her triangles.



3. Where would this formula apply?


R1=R3 divided by R4 X R2?


Unless R1 R2 and R4 have specific meaning, in the feedback to unity gain analog multiplier in an analog computer.


I suspect you have another answer.


4. Three resistors R1, R2 and R3 are wired in series to a 24 Volt supply. R1 carries 5 Amps. What current flows through R2 and R3?

 same, series.




5. In a 50 Hz circuit containing a coil of many turns.




or ii, The fuse blows,


or iii, The current lags the supply Voltage.


are both possible. Depends on the choice of fuse,,,,


6. What is a Galvanometer used for?


milliamps


7. A full wave bridge rectifyer   RECTIFIER converts.


ii. A.C. to D.C. current.


8. A single phase  full wave bridge rectifyer contains.


iii. 4 diodes.


or possibly nowadays in a VSD 4 power transistors.



Bonus Q from me how many diodes to rectify 3 phase and have 600Hz ripple (not 300Hz.)



9. What does a smoothing capacitor do?

The idea is analagous to the water tank in the loft.


10. What unit is a  Henry? To what does it apply?

Volts per (amp per second)

(or if you prefer the fields and waves view  B/H per meter)

L


Or the no of wifes you have divided by 6. Those unlucky in that dept may only have milli-henries.

A henry is a measure of vacuum cleaner power

I must admit I`ve always got to stop and think of lead and lag and likewise, to a lesser degree, ampere turns = ampere turns