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pkc111's latest activity
P
pkc111
replied to the thread
Modelling the voltage measured across a dc motor
.
Mar 5, 2024
P
pkc111
replied to the thread
Modelling the voltage measured across a dc motor
.
so a 6V battery can have an immediate jump to 10 ohm (3V) internal resistance drawing 0.4 amp?
Mar 5, 2024
P
pkc111
replied to the thread
Modelling the voltage measured across a dc motor
.
10 ohms
Mar 4, 2024
P
pkc111
replied to the thread
Modelling the voltage measured across a dc motor
.
Ok..I think its becoming a little bit clearer. The 5V to 3V drop in the net motor supply voltage when the motor is stopped with fingers...
Mar 4, 2024
P
pkc111
replied to the thread
Modelling the voltage measured across a dc motor
.
So my DC motor with a 6V battery attached gives a 5V PD reading across the motor terminals. When the rotor is held still with fingers it...
Mar 4, 2024
P
pkc111
replied to the thread
Modelling the voltage measured across a dc motor
.
Thank you! I think I may try a battery instead to remove some variables :)
Mar 3, 2024
P
pkc111
replied to the thread
Modelling the voltage measured across a dc motor
.
and would I be better off trying to quantify a motor's back emf with a battery rather than a transformer power supply?
Mar 3, 2024
P
pkc111
replied to the thread
Modelling the voltage measured across a dc motor
.
Thanks, So how would I model (in a spreadsheet )the predicted net voltage across a small 4 V DC motor hooked up to a laboratory power...
Mar 3, 2024
P
pkc111
posted the thread
Modelling the voltage measured across a dc motor
in
Electrical Engineering
.
Hi there, I have done an experiment measuring the voltage across the terminals of a dc motor, whilst running and then by holding it...
Mar 3, 2024
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