Magnetic Balance: Force on a current carrying conductor
Not what you're looking for?
The circuit shown below is used to make a magnetic balance to weigh objects. The mass m to be measured is hung from the center of the bar that is in a uniform magnetic field of 1.50 T, directed towards the plane of the figure. The horizontal bar is 60 cm long. It is connected to the battery by thin vertical wires that can support no appreciable tension; all the weight of the suspended mass m is supported by the magnetic force on the bar. A resistor with R = 5.00 ohms is in series with the bar; the resistance of the rest of the circuit is much less than this.
a) Which point, a or b, should be the positive terminal of the battery?
b) If the maximum terminal voltage of the battery is 175 V, What is the greatest mass m that this instrument can measure?
(SEE ATTACHMENT)
Purchase this Solution
Solution Summary
The mass hanging on a weightless rod is calculated using magnetic force.
Purchase this Solution
Free BrainMass Quizzes
Basic Physics
This quiz will test your knowledge about basic Physics.
The Moon
Test your knowledge of moon phases and movement.
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.
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.