Figure 619 Circuit for question 41 41 The purpose of the M c

Figure 6-19 Circuit for question 41.

41. The purpose of the M contact shown in the circuit of Figure 6-19 is to:

a) open the circuit in the case of a motor overload.

b) start the motor from a remote location.

c) keep the starter coil energized when the start button is released.

d) keep the starter coil deenergized when the start button is released.

Solution

To keep the starter coil energized when the start button is released.when start button is pressed the supply goes through the coil and current passes through it then magnetic field creates in it then it gets energized.