Determining Resistance, Cross Sectional Area and Current
Not what you're looking for?
A standard 100 Watt (P = 100 W at 120 volts) light bulb contains a 7.10 cm -long tungsten filament. The high-temperature resistivity of tungsten is 9x10^-7 ohms/meter.
(a) What is the Resistance of this tungsten filament?
(b) What is the cross sectional area of this filament?
(c) What current is flowing throw this bulb?
Purchase this Solution
Solution Summary
This solution provides steps to determine resistance, the cross sectional area and current.
Solution Preview
Hello and thank you for posting your question to Brainmass!
The solution is ...
Purchase this Solution
Free BrainMass Quizzes
The Moon
Test your knowledge of moon phases and movement.
Variables in Science Experiments
How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.
Classical Mechanics
This quiz is designed to test and improve your knowledge on Classical Mechanics.
Intro to the Physics Waves
Some short-answer questions involving the basic vocabulary of string, sound, and water waves.
Introduction to Nanotechnology/Nanomaterials
This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.