Explain the function of the following as applied to a d.c. machine. i. Yoke ii. Pulley – NABTEB QUESTION

i. Yoke is a frame in which the field coils are fixed to make magnetic field of flux for the production of e.m.f. in case of generator or to cause rotation in case of motor.

ii. Pulley is used to drive a machine or for lifting/lowering heavy objects.