Hey, can someone me with question 19.

HI!

Transformers are devices used in electrical circuits to change the voltage of electricity flowing in the circuit.

Meter are typically calibrated in billing units, the most common one being the kilowatt hour (kWh)

Distribution Panel (also known as panel board, breaker panel, or electric panel) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits, while providing a protective fuse or circuit breaker for each circuit in a common enclosure.

I hope this helped !

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