Question

Two horizontal metal plates, each 10.0 cm square, are aligned 1.00 cm apart with one above the other. They are given equal-magnitude charges of opposite sign so that a uniform downward electric field of 2.04 103 N/C exists in the region between them. A particle of mass 2.00 10-16 kg and with a positive charge of 1.03 10-6 C leaves the center of the bottom negative plate with an initial speed of 1.05 105 m/s at an angle of 37.0° above the horizontal.

(a) Describe the trajectory of the particle.

1)a parabola

2)a circle

3)a helix

4)a straight line

(b) Which plate does it strike?

1)negative plate

2)positive plate

3)It does not strike either plate.

(c) Where does it strike, relative to its starting point? (Enter the horizontal distance from the initial position.)

_________

Answer #1

The solution is given below.

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...

Two very large charged parallel metal plates are 8.50 cm apart
and produce a uniform electric field of 3.05×106 N/C
between them. A proton is fired perpendicular to these plates,
starting at the middle of the negative plate and going toward the
positive plate.
How much work has the electric field done on this proton
by the time it reaches the positive plate?
Answer in Joules.

An electric field of 120 N/C is maintained between two plates
separated by 10.0 cm. A positive charged particle of mass 1.92 x
10-20 kg is placed at the positive plate and released.
If its speed at the negative plate is 21,000 m/s:
A) find the work done on the charge.
B) find the potential difference between the plates
C) find the charge on the particle

An electric field of 120 N/C is maintained between two plates
separated by 10.0 cm. A positive charged particle of mass 1.92 x
10-20 kg is placed at the positive plate and released.
If its speed at the negative plate is 21,000 m/s, find:
a)the work done on the charge.
b)the potential difference between the plates
c) the charge on the particle.
Show all the steps and state the answer as clear as possible
please. Thank you.

Two large metal plates of area 7.00 m.^2 face each other. They
are 5.00 cm. apart and carry equal and opposite charges on their
inner surfaces. If E between the plates is 78.0 N./C., what is the
charge (in coulombs) on the plates? (Neglect edge effects.)

Two large metal plates of area 5.36 m.^2 face each other. They
are 5.00 cm. apart and carry equal and opposite charges on their
inner surfaces. If E between the plates is 966.4 N./C., what is the
charge (in coulombs) on the plates? (Neglect edge effects.)

Two 11-cm-diameter metal plates 1.4 cm apart are charged to
±12.5 nC. They are suddenly connected together by a
0.224-mm-diameter copper wire stretched taut from the center of one
plate to the center of the other.
Part A
What is the maximum current in the wire?
Express your answer with the appropriate units.
Part B
Does the current increase with time, decrease with time, or
remain steady?
Increase with time?
decrease with time?
remain steady?
Part C
What is the...

A pair of parallel,
horizontal metal plates have a field between them given
by = 122ĵ N/C.
At some instant an
electron moving between the plates has velocity = (152?̂
+ 3.38?̂) × 103 m/s.
Determine:
a. the electron’s
initial acceleration; = (
Blank 1. Calculate the answer by read surrounding text. ?̂
+ Blank 2. Calculate the answer by read surrounding
text. ?̂) m/s2
b. the velocity of the electron after it’s x-position has
changed by 2.00 cm. =
( Blank 3. Calculate the answer...

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