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A transformer has a 240 V primary and a 120 V secondary. With a 30 ohm load connected, what is the primary volt-amps?
A) 4
B) 8
C) 480
D) 960
Primary Volt-Amps
A measurement of apparent power in an electrical system, primarily used in AC circuits, representing the product of primary voltage and current.
Load Connected
Refers to an electrical component or device that is connected to a circuit and draws power from it.
Secondary
Refers to the output side of a transformer that receives energy from the primary winding and delivers it to the load.
- Determine the working features of transformers, covering calculations related to voltage, current, and turns ratio.
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Learning Objectives
- Determine the working features of transformers, covering calculations related to voltage, current, and turns ratio.
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