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How much energy is dissipated as heat during a two-minute time interval by a 5.4 kQ resistor which has a constant 20 V potential difference across its leads?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 71AP: A student makes a homemade resistor from a graphite pencil 5.00 cm long, where the graphite is 0.05...

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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.

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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

How much energy is dissipated as heat
during a two-minute time interval by a 5.4
kQ resistor which has a constant 20 V
potential difference across its leads?
a. 4.44 J
b. 8.89 J
C. 2.22 J
d. 17.78 J
e. 1.65 J

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