Which functions belong in the cells marked X and Y?

component function

brush X

commutator Y

A. X: Conducts current to the armature and reverses direction of current

Y: Rotates as a result of changing magnetic forces

B. X: Rotates as a result of changing magnetic forces

Y: Conducts current to the armature and reverses direction of current

C. X: Allows current to flow into the commutator

Y: Conducts current to the armature and reverses direction of current

D. X: Allows current to flow into the commutator

Y: Rotates as a result of changing magnetic forces

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