A battery with an emf of 40 V and internal resistance of 0.3 Q is connected across a load resistor R. If the current in the circuit is 8.6 A, what is the value of R (in Q)? it R Select one: ОА. 3.89 Ов. 5.28 Ос. 3.42 OD. 4.65 O E. 4.35

A battery with an emf of 40 V and internal resistance of 0.3 Q is connected across a load resistor R. If the current in the circuit is 8.6 A, what is the value of R (in Q)? it R Select one: ОА. 3.89 Ов. 5.28 Ос. 3.42 OD. 4.65 O E. 4.35

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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Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

Question

100%

A battery with an emf of 40 V and
internal resistance of 0.3 Q is
connected across a load resistor R. If
the current in the circuit is 8.6 A, what
is the value of R (in Q)?
R
Select one:
O A. 3.89
O B. 5.28
Oc. 3.42
OD. 4.65
O E. 4.35

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