Question

In an experiment to determine the charge of a charged sphere
with a mass of 2.60x10^-16 kg, the sphere was injected between two
horizontal charged plates, separated by 3.50cm. By increasing
voltage between the plates to 1.50x10^2V, the sphere eventually
suspended between the charged plates.

If the voltage required to suspend the sphere was 1.50x10^2, then
the charge on the sphere must be??

Answer #1

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
? answer in the format of a.bc x 10-de C
b) An oil droplet with a mass of 3.50 x 10-15 kg
accelerates downward at a rate of 2.50 m/s2 when it...

In a Millikan-type experiment, an oil droplet of mass 3.7x10^-18
is suspended between two horizontal parallel plates when the
potential difference between the plates is 4.50 V and they are 4.0
cm apart. The upper plate is positive.
a) Is the sphere positively or negatively charged? Explain.
b) Calculate the magnitude of charge on the sphere.
c) How much excess or deficit of electrons does the sphere have?
(State whether is is excess or deficit.)

The Millikan oil drop experiment of 1909 allowed Robert A.
Millikan to determine the charge of an electron. In the experiment,
an oil drop is suspended between two charged plates by an electric
force that equals the gravitational force acting on the 2.07 x
10-14 kg drop.
a) What is the gravitational force on this oil drop?
b) What is the Electric force on the charge?
c) What is the charge on the drop if the electric field is 1.72...

A pendulum whose mass is a 2g sphere hangs from a wire inside
two electrically charged plates with equal charge of opposite sign
(creating a uniform field E ) The separation of the plates is 10
cm. It determines the difference of potential between the plates
knowing that the wire forms an angle of 10o with the vertical and
that the charge of the sphere is 10nc (10 x 10-9c.
A.
3.5 x104 v
B.
35 x 108 v
C....

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
0.79-μm-diameter droplet of oil, having a charge of
+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 ion travelling with charge equivalent to
1e and mass 3.17 x 10^−26 kg is accelerated in a vacuum between two
parallel plates with a potential difference of 5.00 x 10^2 V
between
them. The ions move into a uniform external field wirh a
strength of 0.2T
a) determine the speed of the ion as it leaves the parallel
plates
b) determine the magnetic force (mag and dir) experienced by
the ion as it enters the magnetic field...

A particle with a mass of 3 g and a charge of +5 μC is released
from rest at a distance of 27 cm from another particle with a
charge of +27 μC, which is held fixed. How fast is the moving
particle traveling when it is 134 cm away from the fixed
particle?
Answer should be to two decimal place and in m/s.
2. parallel-plate air-gap capacitor is constructed from two
square plates of side length 29 cm. The...

Consider a particle of charge q = 1.2 C and mass
m = 1.2 kg passing through the region between a pair of
infinitely long horizontal plates separated by a distance
d = 1.5 m with a uniform electric field strength
E = 38 N/C directed in the downwards direction
(-y direction). The particle begins moving horizontally
with an initial velocity of v = 35 m/s from a position
halfway between the plates. How far in meters are the plates?...

A conducting sphere has a net charge of 300e. Determine the
approximate number of electrons in the sphere.
Two-point charges of +3 microCoulomb and -6 microCoulomb are
separated by a distance of 2 cm. The magnitude of the force on each
load is:
An electric field has a magnitude of 2,160 N / C. If the force on a
load is 0.01296 N, determine the magnitude of the load

a) Two horizontal plates, aligned 1 cm apart, one above the
other, are given equal but opposite charges so that a uniform,
upward electric field of 2kN/C exists in the space between them. A
particle with a mass of 2e-16 kg and a charge of 1 microC leaves
the bottom plate at 0.1 Mm/s at an angle of 30 degrees relative to
the horizontal. What horizontal displacement does the particle
experience before landing?
b) The charged particle in the previous...

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