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
goldfiish [28.3K]
3 years ago
15

The grid in a triode is kept negatively charged to prevent...

Physics
2 answers:
stepladder [879]3 years ago
5 0

Answer:

B. the electrons from being attracted to the grid instead of the anode.

Explanation:

just because its the answer

Anestetic [448]3 years ago
4 0
I think the correct answer is the third statement, electron from escaping from the tube containing the triode. The negative charge on the grid repels any electron in the tube. As a result,the flow of current is controlled. If the field is that strong, all current flow will stop resulting to maintaining the electron cloud in the tube. 
You might be interested in
The lowest-pitch tone to resonate in a pipe of length L that is closed at one end and open at the other end is 200 Hz. Which one
ozzi

Answer:

e. 400 Hz

Explanation:

In closed organ pipe,  only odd harmonics of fundamental note is possible .

The fundamental frequency is 200 Hz . Then other overtones will be having following frequencies .

200 x 3 , 200 x 5 , 200 x 7 , 200 x 9 etc

600 Hz , 1000 Hz , 1400 Hz  , 1800 Hz .

Frequency not possible is 400 Hz .

7 0
3 years ago
1.What is an object that appears fuzzy through a material that is?
Anna007 [38]

Answer:

not sure 5

but thaks for the points

7 0
3 years ago
A gas expands against a constant external pressure of 2.00 atm until its volume has increased from 6.00 to 10.00 L. During this
mars1129 [50]

Answer:

ΔU = - 310.6 J (negative sign indicates decrease in internal energy)

W = 810.6 J

Explanation:

a.

Using first law of thermodynamics:

Q = ΔU + W

where,

Q = Heat Absorbed = 500 J

ΔU = Change in Internal Energy of Gas = ?

W = Work Done = PΔV =

P = Pressure = 2 atm = 202650 Pa

ΔV = Change in Volume = 10 L - 6 L = 4 L = 0.004 m³

Therefore,

Q = ΔU + PΔV

500 J = ΔU + (202650 Pa)(0.004 m³)

ΔU = 500 J - 810.6 J

<u>ΔU = - 310.6 J (negative sign indicates decrease in internal energy)</u>

<u></u>

b.

The work done can be simply calculated as:

W = PΔV

W = (202650 Pa)(0.004 m³)

<u>W = 810.6 J</u>

7 0
3 years ago
20% Part (a) Use an "E Field Sensor" and move it along either equipotential. What can you say about the E field along an equipot
Alex

Answer:

b. Constant magnitude, but varying direction, perpendicular to the equipotential.

Explanation:

As we know that the relation between electric field and electric potential is given as

\Delta E = -\frac{dV}{dr}

here if we say that potential is constant because electric field sensor is moving along equi-potential line.

Then we will say

V = constant

so we have

\Delta E = 0

so electric field will remain constant always in magnitude and always remains perpendicular to the surface

so we have

b. Constant magnitude, but varying direction, perpendicular to the equipotential.

6 0
3 years ago
A long cylindrical insulator has a uniform charge density of 1.54 µc/m3 and a radius of 6cm what is the electric field inside th
Lubov Fominskaja [6]
Plug given values in SI units to get electric field.

4 0
3 years ago
Other questions:
  • Both acids and bases produce ions when dissolved in water. Propose a way to describe what
    8·2 answers
  • A top in the form of a cone is spinning about its symmetry axis at a rate �, while precessing about the vertical axis at a rate
    15·1 answer
  • Which one of the following is NOT considered a part of a forensic scientist's job?
    15·1 answer
  • A chamber 5.0 cm long with flat, parallel windows at the ends is placed in one arm of a Michelson interferometer (see below). Th
    5·1 answer
  • 1. Speed is a measure of
    9·1 answer
  • He output voltage and current of a transformer are determined by the
    12·2 answers
  • What phase difference between two otherwise identical traveling waves, moving in the same direction along a stretched string, wi
    10·1 answer
  • A 1200 kg truck is moving to the right at the speed of 30 m/s. It hit another identical truck that was at rest. The two trucks s
    10·1 answer
  • A weight suspended from a spring is seen to bob up and down over a distance of 20 cm triply each second. What is the period? Wha
    10·1 answer
  • When a ray of light is incident normally on an air glass interface what is its angle of refraction​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!