Electicity
A positively charged oil droplet remains in the electric field between two horizontal plates, separated by a distance 1 cm. If the charge on the drop is 3.2·10−19 C and the mass of the droplet is 10−14 kg what is the potential difference between the plates? Now if the polarity of the plates is reversed what is the instantaneous acceleration of the droplet
Homework Answers
a) An oil droplet with a mass of 7.20 x 10-16 kg is moving upward at...
a) An oil droplet with a mass of 7.20 x 10-16 kg is moving upward at a constant speed of 2.0 m/s between two horizontal charged plates. If the electric field strength between the plates is 2.20 x 104 V/m what is the charge on the oil droplet? Express your answer in the format of a.bc x 10-de C b) In a Millikan-type experiment, two horizontal charged plates are 2.5 cm apart. A latex sphere of 1.3 x 10-15 kg...
In an oil-drop experiment a negatively charged oil drop has a mass of 3.0 x 10-15...
In an oil-drop experiment a negatively charged oil drop has a mass of 3.0 x 10-15 kg and is held at rest between two parallel plates separated by a distance of 2.0 cm. The potential difference between the plates is 460 V. a) On the diagram below, show all the applied forces on the drop. Do not include the buoyant force of the air on the oil drop. b) What is the strength of the electric field between the plates?...
Oil Drop 11. Robert Millikan received a Nobel Prize for determining the charge on the electron....
Oil Drop 11. Robert Millikan received a Nobel Prize for determining the charge on the electron. To do this, he set up a of oil between potential difference between two horizontal parallel metal plates. He then sprayed drops the plates and adjusted the potential difference until drops of a certain size between the plates, as shown above. Suppose that when the potential difference adjusted until the electric field is 10,000 N/C downward, a certain drop with a mass of remains...
In 1909, Robert Millikan was the first to find the charge of an electron in his...
In 1909, Robert Millikan was the first to find the charge of an electron in his now-famous oil-drop experiment. In that experiment tiny oil drops were sprayed into a uniform electric field between a horizontal pair of oppositely charged plates. The drops were observed with a magnifying eyepiece, and the electric field was adjusted so that the electric force on some negatively charged oil drops was just sufficient to balance their weight. Millikan accurately measured the charges on many oil...
In the early 1900s, Robert Millikan used small charged droplets of oil, suspended in an electric...
In the early 1900s, Robert Millikan used small charged droplets of oil, suspended in an electric field, to make the first quantitative measurements of the electron’s charge. A 0.74-μm-diameter droplet of oil, having a charge of +e+e, is suspended in midair between two horizontal plates of a parallel-plate capacitor. The upward electric force on the droplet is exactly balanced by the downward force of gravity. The oil has a density of 860 kg/m3, and the capacitor plates are 6.0 mm...
A positively charged oil drop has a mass of 2.76 * 10^-14 kg. It is suspended...
A positively charged oil drop has a mass of 2.76 * 10^-14 kg. It is suspended in an electric field of 4.2 * 10^5 N/C between 2 parallel plates with a capacitance of 2 uf spaced 3 cm apart. a.) What is the charge on the drop? b.) How many electrons is the drop missing? c.) What is the electric potential across the plates? d.) How much charge is stored on each plate? e.) How much energy is stored in...
Question 18 (3 points) Millikan's oil drop experiment used to measure the elementary charge by introducing...
Question 18 (3 points) Millikan's oil drop experiment used to measure the elementary charge by introducing a tiny negatively charged droplet of mineral oil between the two horizontally parallel charged plates. An oil droplet with a mass of 1.633x10-14kg is in equilibrium in Millikan's oil drop experiment. The voltage between the plates is 5000 V, and the distance between them is 2.0 cm. Calculate the number of excess electrons on the droplet. [Click on in your answer box to use...
4. A 219 LaTeX: \mu Cμ C point charge placed in an electric field region. The...
4. A 219 LaTeX: \mu Cμ C point charge placed in an electric field region. The electric field applied a force of 0.66 N. Determine the magnitude of the electric field in that region. 5. Two charged plates are separated by a distance of 12 cm, and the potential difference between them is -57.6 V. Determine the electric field between the two plates.
A negatively charged oil drop whose mass is 10-15 kg and whose charge is -6.4 10-19...
A negatively charged oil drop whose mass is 10-15 kg and
whose charge is -6.4 10-19 Coulombs remains stationary under the
influence of the Earth’s gravitational field and a uniform external
electric field made by two oppositely-charged parallel plates (see
diagram below). Ignore the influence of Earth’s electric field on
the oil drop.
Determine the magnitude and direction of the net
electric field created by the plates (not the electric field of the
oil drop !). Explain completely how you...
PLEASE ANSWER CORRECTLY AND I WILL RATE YOU HIGH 1) Light of wavelength 500 nm illuminates...
PLEASE ANSWER CORRECTLY AND I WILL RATE YOU HIGH 1) Light of wavelength 500 nm illuminates a round 0.50-mm-diameter hole. A screen is placed 6.0 m past the slit. What is the width of the central bright circle on the screen? a. 7.3 mm b. 260 μm c. 15 mm d. 3700 μm 2) A spherical oil droplet with nine excess electrons is held stationary in an electric field between two large horizontal plates that are 2.25 cm apart. The...
Oil Drop 11. Robert Millikan received a Nobel Prize for determining the charge on the electron. To do this, he set up a of oil between potential difference between two horizontal parallel metal plates. He then sprayed drops the plates and adjusted the potential difference until drops of a certain size between the plates, as shown above. Suppose that when the potential difference adjusted until the electric field is 10,000 N/C downward, a certain drop with a mass of remains...
Question 18 (3 points) Millikan's oil drop experiment used to measure the elementary charge by introducing a tiny negatively charged droplet of mineral oil between the two horizontally parallel charged plates. An oil droplet with a mass of 1.633x10-14kg is in equilibrium in Millikan's oil drop experiment. The voltage between the plates is 5000 V, and the distance between them is 2.0 cm. Calculate the number of excess electrons on the droplet. [Click on in your answer box to use...
A negatively charged oil drop whose mass is 10-15 kg and
whose charge is -6.4 10-19 Coulombs remains stationary under the
influence of the Earth’s gravitational field and a uniform external
electric field made by two oppositely-charged parallel plates (see
diagram below). Ignore the influence of Earth’s electric field on
the oil drop.
Determine the magnitude and direction of the net
electric field created by the plates (not the electric field of the
oil drop !). Explain completely how you...
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