1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zmey [24]
3 years ago
13

A parallel-plate capacitor is constructed of two horizontal 12.0-cm-diameter circular plates. A 1.0 g plastic bead, with a charg

e of -6.0 nC, is suspended between the two plates by the force of the electric field between them.
Which plate, the upper or the lower, is positively charged?
Physics
1 answer:
saul85 [17]3 years ago
3 0

Answer:

The upper plate is positive charged.

Explanation:

From the information we have, we know that the plastic bead, carrying a negative charge of  -6 nC, is suspended between the two plates by the force of the electric field between them.

If it is suspended, this means that it is at rest. As we have two forces acting on the bead (gravity and electrostatic force), and gravity is always downward, this means that the electrostatic force must be upwards.

If this force is due to the field, as the force on a negative charge is opposite to the direction of the field, this means that the electric field created by the charge on the plates must be pointed downward.

If it points downward, as the electric field has the same direction that it would have a positive test charge, this means that the charge would go down also, away from the positive charged plate, which must be the upper one.

You might be interested in
What systems of the body are involved in preparing and eating a sandwich
jek_recluse [69]
<span>The systems of the body involved in preparing and eating a sandwich are : 
</span>The skeletal, muscular, and digestive system. They are all directly involved in eating and preparing a sandwich.
5 0
3 years ago
Which of the following intermolecular forces explains why iodine (I2) is a solid at room temperature?
egoroff_w [7]
"Dispersion forces" is the one intermolecular force among the following choices given in the question that <span>explains why iodine (I2) is a solid at room temperature. The correct option among all the options that are given in the question is the third option or the penultimate option. I hope that the answer has helped you.</span>
3 0
3 years ago
Astar begins as a blank a large cloud of gas and dust
crimeas [40]
This is a statement but yes a star forms inside nebulae which are gigantic clouds of gas. stars form inside as the gases own gravity pulls it together after which it becomes large enough to perform fusion and become a star.
3 0
3 years ago
Test questions!!!!!!!!
Pani-rosa [81]

Answer:

B. surface wave

8 0
2 years ago
Which is correct? I need to know!!
Mnenie [13.5K]
What website are you using?
6 0
3 years ago
Other questions:
  • Which pair of sentences is describing the same velocity? A car is parked. A car is moving in circles. A bus drives 40 miles per
    9·2 answers
  • Help please I really need help in this one
    13·1 answer
  • When fat comes in contact with sodium hydroxide, it produces soap and glycerin. Determine whether this is a physical change or a
    5·2 answers
  • Unpolarized light is incident upon two ideal polarizing filters that do not have their transmission axes aligned. If 14% of the
    7·1 answer
  • How to calculate time using power and energy
    8·1 answer
  • What is power in physics​
    14·1 answer
  • A container of water is lifted vertically 3.0m
    15·1 answer
  • Two stereo speakers mounted 4.52 m apart on a wall emit identical in-phase sound waves. You are standing at the opposite wall of
    7·1 answer
  • Can somebody plz help me with this one the question is in the screen shot.
    14·1 answer
  • What does flowing electrical charge produce?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!