- #1
StealthRay
- 51
- 0
Hi,
Question 1:
can anyone tell me do we need a rheostat or face-plate starter for a 12V dc motor?
I read in the book and it says the starting current for the motor is very high and it might burn out the armature. I was wondering if I could just directly connect the 12V supply to the 12V dc motor?
Or do I need put a rheostat and gradually decrease the resistance as the motor picks up the speed.
Question 2:
I just bought some DC motors from the store and some of the motors have 4 pins. I can see the +ve and -ve sign on the motor but there are also 2 more pins labelled as " l ".
Can anyone tell me what the 2 pins are for?
Thank you for your kind help.
Question 1:
can anyone tell me do we need a rheostat or face-plate starter for a 12V dc motor?
I read in the book and it says the starting current for the motor is very high and it might burn out the armature. I was wondering if I could just directly connect the 12V supply to the 12V dc motor?
Or do I need put a rheostat and gradually decrease the resistance as the motor picks up the speed.
Question 2:
I just bought some DC motors from the store and some of the motors have 4 pins. I can see the +ve and -ve sign on the motor but there are also 2 more pins labelled as " l ".
Can anyone tell me what the 2 pins are for?
Thank you for your kind help.