5. The diagram below represents an electriccircuit consisting of a 12-volt battery, a3.0-ohm resistor, R,, and a variableresistor, R,.3.0 2R112 V .R2At what value must the variable resistorbe set to produce a current of 1.0 amperethrough R,?(1) 6.0 Q(2) 9.0 2(3) 3.0 2(4) 12 2

Given data: Two resistors are connected in series combination R1 = 3.0 Ω and R2 = ? Battery…

5. The diagram below represents an electric circuit consisting of a 12-volt battery, a 3.0-ohm resistor, R,, and a variable 3.0 Ω resistor, R,. R1 12 V = R2 At what value must the variable resistor be set to produce a current of 1.0 ampere through R,? (1) 6.0 2 (2) 9.0 2 (3) 3.0 2 (4) 12 Q

5. The diagram below represents an electric circuit consisting of a 12-volt battery, a 3.0-ohm resistor, R,, and a variable 3.0 Ω resistor, R,. R1 12 V = R2 At what value must the variable resistor be set to produce a current of 1.0 ampere through R,? (1) 6.0 2 (2) 9.0 2 (3) 3.0 2 (4) 12 Q

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 40P: A typical cell phone consumes an average of about 1.00 W of electrical power and operates on 3.80 V....

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Concept explainers

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.

Question

5. The diagram below represents an electric
circuit consisting of a 12-volt battery, a
3.0-ohm resistor, R,, and a variable
resistor, R,.
3.0 2
R1
12 V .
R2
At what value must the variable resistor
be set to produce a current of 1.0 ampere
through R,?
(1) 6.0 Q
(2) 9.0 2
(3) 3.0 2
(4) 12 2

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