A transformer outside of a business steps the average voltage down from 3600 V to 120 V. The transformer delivers 1.50 × 106 W to the business at 82.0% efficiency. (Give answers to 3 sig.figs.) Find … (a) the power delivered to the primary, (b) the current in the primary, and (c) the current in the secondary.

A transformer outside of a business steps the average voltage down from 3600 V to 120 V. The transformer delivers 1.50 × 106 W to the business at 82.0% efficiency. (Give answers to 3 sig.figs.) Find … (a) the power delivered to the primary, (b) the current in the primary, and (c) the current in the secondary.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter15: Alternating-current Circuits

Section: Chapter Questions

Problem 15.9CYU: Check Your Understanding A transformer steps the line voltage down from 110 to 9.0 V so that a...

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Question

A transformer outside of a business steps the average voltage down from 3600 V to 120 V.

The transformer delivers 1.50 × 10⁶ W to the business at 82.0% efficiency.

(Give answers to 3 sig.figs.)

Find …

(a) the power delivered to the primary,
(b) the current in the primary, and
(c) the current in the secondary.

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