# relation between motor torque constant and back EMF

#### maruthi

Joined Dec 13, 2009
1
Hai,

Could anbody please suggest me, how we relate "motor torque constant" and "back EMF"?

Regards,
maruthi.

#### rjenkins

Joined Nov 6, 2005
1,013
Back EMF should be roughly proportional to speed for any given motor.

Torque is more related to current.