On 18/05/2018 20:44, Max Demian wrote:
On 18/05/2018 12:51, The Other Mike wrote:
On Fri, 18 May 2018 12:16:41 +0100, Max Demian
wrote:

On 17/05/2018 12:26, Bill Wright wrote:
On 17/05/2018 11:07, Dave Plowman (News) wrote:
In article ,
Â*Â*Â*Â* The Natural Philosopher wrote:
I don't actually understand why alternators were capable of supplying
more current though.

Because they were designed to do so.

Larger dynamos were also fitted to larger cars, etc.

Alternators spun more freely than dynamos.

I'm surprised that some pedant hasn't pointed out that all alternators
/are/ dynamos - which can be AC or DC - it's just a motor trade
convention that the word "dynamo" was kept for the original DC
generators when alternators came in.

Possibly because the pedants know that a dynamo usually has a
commutator and
directly produces something resembling DC, an alternator usually has
slip rings
and produces AC that has to be rectified.

"Dynamo" comes from a Greek word "dynamis" meaning force or power. Not
that the Ancient Greeks would have known the difference between AC and
DC. Or force and power. Heck, they knew hardly anything about
electricity: they generated electricity by rubbing a piece of amber on a
cat.

Which is a lot easier than rubbing a cat on a piece of amber

SteveW