An electrical device draws 4.9 A at 220 V. (a) If the voltage drops by 25%, what will be the current, assuming the resistance doesn't change? (b) If the resistance of the device were reduced by 25%, That current would be drawn at 220 V?

An electrical device draws 4.9 A at 220 V. (a) If the voltage drops by 25%, what will be the current, assuming the resistance doesn't change? (b) If the resistance of the device were reduced by 25%, That current would be drawn at 220 V?

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter7: Electricity

Section: Chapter Questions

Problem 4C: Using your understanding of the nature of internal energy and temperature, explain why we might...

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Question

Temperature Independent Ohmic Resistors
An electrical device draws 4.9 A at 220 V.
(a) If the voltage drops by 25%, what will be the current, assuming the resistance doesn't change?
(b) If the resistance of the device were reduced by 25%, that current would be drawn at 220 V?

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