28.0 V R 3. In the circuit shown in the figure below, find (a) the current in resistor R; (b) the resistance R; (c) the unknown emf ɛ. (d) If the 4,00 A circuit is broken at point x, what is the current in resistor R? x 6.00 N 6.00 A ww 3,00 0

28.0 V R 3. In the circuit shown in the figure below, find (a) the current in resistor R; (b) the resistance R; (c) the unknown emf ɛ. (d) If the 4,00 A circuit is broken at point x, what is the current in resistor R? x 6.00 N 6.00 A ww 3,00 0

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 42P: What current flows through a 2.54-cm-diameter rod of Pure silicon that is 20.0 cm long, when 1.00103...

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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

3. With diagram with complete Solutions

28.0 V
R
3. In the circuit shown in the figure below, find (a) the current in
resistor R; (b) the resistance R; (c) the unknown emf ɛ. (d) If the
circuit is broken at point x, what is the current in resistor R?
4.00 A
x 6.00 N
6.00 A
3.00 N

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