e A 65-W lightbulb operates on a potentialdifference of 95 V. Find (a) the current in the bulb and (b) the resistance of the bulb. (c) If this bulb is replaced with one whose resistance is half the value found in part (b), is its power rating greaterthan or less than 65 W? By what factor?

University Physics Volume 2
18th Edition
ISBN:9781938168161
Author:OpenStax
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Chapter10: Direct-current Circuits
Section: Chapter Questions
Problem 63P: (a) During surgery, a current as small as 20.0A applied directly to the heart may cause ventricular...
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e A 65-W lightbulb operates on a potential
difference of 95 V. Find (a) the current in the bulb and (b) the resistance of the bulb. (c) If this bulb is replaced with one whose resistance is half the value found in part (b), is its power rating greater
than or less than 65 W? By what factor?

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