In 1877 J. J. Thomson measured the charge to mass ratio of the electron and in doing so he neglected the gravitational effects of the earth and the effects of the earth's magnetic field. What errors were thereby introduced?
In 1877 J. J. Thomson measured the charge to mass ratio of the electron and in...
In 1877 J. J. Thomson measured the charge to mass ratio of the electron and in doing so he neglected the gravitational effects of the earth and the effects of the earth's magnetic field. What errors were thereby introduced?
In a fictitious world the Thomson cathode ray experiments found the electron charge to mass ratio to be 9.25×105 C/g. A series of oil drops in the Milikan oil drop experiment were found to have excess charges of 3.73×10-19 C, 4.66×10-19 C and 2.80×10-19 C. What could be the mass of an electron? 1.01×10-25 grams 2.80×10-19 grams 3.73×10-19 grams 5.04×10-25 grams 4.03×10-25 grams
Imagine an alternate reality. The Thomson cathode ray experiments arrived at a charge to mass ratio, 8.51×106 C/g for the electron. If when Milikan performed the oil drop experiment he found that a series of droplets had excess charges of 3.11×10-19 C, 1.56×10-19 C and 2.08×10-19 C, what could be the mass of an electron?
3. Fill the blanks and the Proof - J.J. Thomson's experiment to fine the charge-to-mass ratio of the tt) (25 points) electron (i.e. e/m; The first is the experiment of Joseph John Thomson, who first demonstrated that atoms are actually composed of aggregates of charged particles. Prior to his work, it was believed that atoms were the fundamental building blocks of matter. The first evidence contrary to this notion came when people began studying the properties of atoms in large...
How does Ohm's law help calculate the charge/mass ratio of an electron such as the experiment by JJ Thomson?
Mass SpectrometerJ. J. Thomson is best known for his discoveries about the nature of cathode rays. Another important contribution of his was the invention, together with one of his students, of the mass spectrometer. The ratio of mass m to (positive) charge q of an ion may be accurately determined in a mass spectrometer. In essence, the spectrometer consists of two regions: one that accelerates the ion through a potential difference V and a second that measures its radius of curvature in...
Finding the charge to mass (e/m) ratio of the electron Often in physics, we look for ways to find fundamental physical constants. From the set-up demonstrated in class, we are able to find a monumental combination of two physical constants-the charge of an electron (e) and the mass of an electron (m). Since the charge of an electron (e) is well known through other experiments, we will use the ratio of charge to mass to find the mass of an...
Finding the charge to mass (e/m) ratio of the electron Often in physics, we look for ways to find fundamental physical constants. From the set-up demonstrated in class, we are able to find a monumental combination of two physical constants-the charge of an electron (e) and the mass of an electron (m). Since the charge of an electron (e) is well known through other experiments, we will use the ratio of charge to mass to find the mass of an...
The electric field near the surface of Earth points downward and has a magnitude of 152 N/C. What is the ratio of the magnitude of the upward electric force on an electron to the magnitude of gravitational force on the electron? What charge should be placed on a plastic ball of mass 4.06 g so that the electric force balances the weight of the ball near Earth's surface?
Considering hydrogen atom as a electron (mass Me and charge -e) circulates at a proton ( mass Mp and charge +e) doing a circular motion with radius r, therefore the total energy of electron=_____, and the magnetic field of circular motion by electron that acts on the proton=______.