Automation System
How is the integral mode implemented using analog methods?

Op amp and resistors
None of these
Op amp and an RC network to place the error voltage across the capacitor
Op amp and a capacitor
All of these

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Automation System
Stepping motors:

can be built to index different amounts by changing the pole configuration
All of these
can run at varying speeds
do not require commutators
can run both clockwise and counterclockwise

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