A student set up a simple circuit with an ohmic lightbulb, battery and switch. battery switch light bulb When the switch is closed, the student measures 639MA being drawn from the 2.2V battery by the lightbulb. They decide to leave the switch closed for a few hours. When they measure the current again, they find it is now 298mA, and correctly guesses that the battery has dropped voltage. What would they measure the new voltage across the battery to be? (Units: V)

A student set up a simple circuit with an ohmic lightbulb, battery and switch. battery switch light bulb When the switch is closed, the student measures 639MA being drawn from the 2.2V battery by the lightbulb. They decide to leave the switch closed for a few hours. When they measure the current again, they find it is now 298mA, and correctly guesses that the battery has dropped voltage. What would they measure the new voltage across the battery to be? (Units: V)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

A student set up a simple circuit with an ohmic lightbulb, battery and switch.
battery
switch
light bulb
When the switch is closed, the student measures 639MA being drawn from the 2.2V battery by the
lightbulb. They decide to leave the switch closed for a few hours.
When they measure the current again, they find it is now 298mA, and correctly guesses that the
battery has dropped voltage. What would they measure the new voltage across the battery to be?
(Units: V)

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