DEFINE "PROPERLY" IN THE CONTEXT OF WHAT WE ARE DOING?
YOU WILL CONCLUDE THERE IS NO SUCH THING.
"PROPERLY" IS OUmon TERRITORY DON'T YOU THINK?

Thane

Quote from: CRANKYpants on May 22, 2008, 07:36:07 AM
DEFINE "PROPERLY" IN THE CONTEXT OF WHAT WE ARE DOING?
YOU WILL CONCLUDE THERE IS NO SUCH THING.
"PROPERLY" IS OUmon TERRITORY DON'T YOU THINK?

Thane

In the situation where we are comparing 2 coils it means both are of the same weight and size filling the same area. (in other words the same ID, OD and length)

If you can't get your head around the logic of it, then either trust in the math, try experiments or ask someone who you would trust if there is anyone.

But really it's not that hard is it?

As you increase the number of turns you increase the pickup of both the coils own field (self inductance) and that of the rotor.

This really will help you make a better buggy if you understand this, the HC coils should only be used for braking not for power generation.

Quote from: aether22 on May 22, 2008, 07:23:44 AM

YOU TAKE A COIL OF WIRE PUT A FIXED VOLTAGE AND CURRENT INTO IT - MEASURE THE INDUCED MAGNETIC FIELD.

NOW ADD TURNS - EVENTUALLY THE COIL'S INDUCED MAGNETIC STRENGTH FIELD WILL PEAK.

Yes, as an Electromagnet that is very true.
As a generator coil that is totally untrue provided that all of the coil is inside of the induction field.
Because while each turn increases the coils self induction each turn also increases the coils pickup of the rotor field and the to cancel out.

@aether and @thane, I think your talking at corss purposes becuase its impossible to keep both the voltage and current constant like thane said if youre increasing the turns. You're confused about the operating conditions so your positioins cant be compared - IHMO
-Mike

Quote from: CRANKYpants on May 22, 2008, 07:00:33 AM
YOU CAN TELL ME "WHERE TO GO" IF YOU LIKE BUT THIS IS STILL BULL!

YOU TAKE A COIL OF WIRE PUT A FIXED VOLTAGE AND CURRENT INTO IT - MEASURE THE INDUCED MAGNETIC FIELD.

NOW ADD TURNS - EVENTUALLY THE COIL'S INDUCED MAGNETIC STRENGTH FIELD WILL PEAK.

NOW KEEP ADDING TURNS BEYOND THE PEAK AND THE MAGNETIC FIELD STRENGTH WILL FALL AWAY TOWARDS ZERO.

Thane

Fixing the current or fixing the voltage?
AC or DC?