Consider a wire length L, cross-sectional area A and a resistance R. A second wire at the same temperature has a length 2L and a cross-sectional are of 1/2A. What is the resistance of the second wire
Resistance and Resistivity (Review)

Quiz
•
Physics
•
12th Grade
•
Medium
JENALYN MARAYAG
Used 19+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
R
2R
1/2 R
4R
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
What is the resistance of a wire when its length is reduced by half?
Halved
Quartered
Doubled
Quadrupled
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Xylene works in an electric company. She always recommends that longer extension cords should have a thicker diameter. Her recommendation made because resistance is __________.
inversely with length and directly with cross-sectional area
directly with length and inversely with cross-sectional area
directly with both length and cross-sectional area
inversely with both length and cross-sectional area
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
The electrical resistance pf a metallic conductor is inversely proportional to its _____________.
Temperature
Length
Cross-sectional area
Resistivity
5.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
What is the unit of used to specify the amount of resistance?
Resistance
Ampere
Volts
Ohm
6.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
What symbol represented the unit Ohm?
7.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
It is the opposition of a material offers to current.
Voltage
Current
Resistance
Length
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