Looks correct.Girn said:Start up current
E=IR
12V=I x .01
I = 120A
operating current
6V=I x .01
I = 60A
What is A/C an abbreviation for?Girn said:An A/C starter has a 12V supply & a back EMF of 6V.
The Back EMF (Electromotive Force) equation is a mathematical formula that describes the relationship between a motor's speed and the voltage applied to it. It is also known as the "counter-electromotive force" equation and is used to calculate the amount of voltage generated by a motor when it is in motion.
The Back EMF equation is specifically related to DC (Direct Current) motors. When a DC motor is in operation, the rotation of its armature creates a magnetic field that interacts with the permanent magnets in the motor. This interaction generates a voltage, which is described by the Back EMF equation.
The Back EMF equation is important because it helps us understand the behavior of DC motors and how they convert electrical energy into mechanical energy. It also allows us to calculate the speed and performance of a motor based on the voltage applied to it.
In motor control systems, the Back EMF equation is used to regulate the speed of a motor by adjusting the voltage applied to it. By monitoring the voltage generated by the motor, the control system can make adjustments to maintain a consistent speed, even as the load on the motor changes.
While the Back EMF equation is primarily used for DC motors, it can also be applied to other types of motors that use permanent magnets, such as brushless DC motors and synchronous motors. However, the equation may need to be modified slightly to account for different motor configurations and operating conditions.