A simple, untapped, single phase 480/120 VAC...

Question 1 / 2066636eed28f7522a1c51dbb1

Question 1 of 2066636eed28f7522a1c51dbb1

A simple, untapped, single phase 480/120 VAC step-down control transformer is rated at 600 VA at 60 Hz. What is the rated secondary load current?

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Question 1 of 20

66636eed28f7522a1c51dbb1

A simple, untapped, single phase 480/120 VAC step-down control transformer is rated at 600 VA at 60 Hz. What is the rated secondary load current?

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🔍 Key Concepts

• Transformer VA rating and what it represents • Relationship between VA, volts, and amperes in a single‑phase circuit • Which side of the transformer (primary or secondary) the 120 VAC applies to in the question

💭 Think About

• From the information given, ask: is the 600 VA rating tied to power, current, or voltage? • Decide which voltage (480 V or 120 V) you should use to find the secondary current. • Use the basic formula that links VA, voltage, and current, then solve for current and compare your result to the answer choices.

✅ Before You Answer

• Be sure you are using the secondary voltage (120 VAC) when finding the secondary current. • Confirm you are using the correct formula: VA = Volts × Amps for single‑phase. • After calculating, check that your current value is close to one of the listed choices and not off by a factor of 10 or 100.

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Question 1 of 20

A simple, untapped, single phase 480/120 VAC step-down control transformer is rated at 600 VA at 60 Hz. What is the rated secondary load current?

1.25 amperes

4 amperes

5 amperes

10 amperes

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