What current flows through an electric iron having a resistance of 13 ohms whenconnected across a line having 120 V?A 12.5 V Battery operates s 14.2 ohms flashlight intermittently for a cumulativetime of 65.3 min. (a) What is the average current? (b) What quantity of electricityis furnished by the battery?

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What current flows through an electric iron having a resistance of 13 ohms when connected across a line having 120 V?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 65PQ

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Concept explainers

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

What current flows through an electric iron having a resistance of 13 ohms when
connected across a line having 120 V?
A 12.5 V Battery operates s 14.2 ohms flashlight intermittently for a cumulative
time of 65.3 min. (a) What is the average current? (b) What quantity of electricity
is furnished by the battery?

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