If you use a 3.0 V battery to light a7 W lightbulb, what is the currentin the circuit?If a light bulb has 0.58 Qofresistance, and there is 10 A ofcurrent in the circuit, then what isthe voltage of the in the powersource?

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If you use a 3.0 V battery to light a 7 W lightbulb, what is the current in the circuit?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter14: Inductance

Section: Chapter Questions

Problem 3CQ: The ignition circuit of an automobile is powered by a 12-V battery. How are we able generate large...

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Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

Question

If you use a 3.0 V battery to light a
7 W lightbulb, what is the current
in the circuit?
If a light bulb has 0.58 Qof
resistance, and there is 10 A of
current in the circuit, then what is
the voltage of the in the power
source?

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