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
Leni [432]
3 years ago
11

(a) from the definition of capacitance c = q/δv, it follows that an uncharged capacitor has a capacitance of zero.

Physics
1 answer:
galina1969 [7]3 years ago
6 0
That statement is true.
the capacitor is initially uncharged, but starts to charged when the switch is closed.
The potential difference across the resistor will steadily dropped as the potential difference across the capacitor increased.
You might be interested in
What is the most violent star death called
gogolik [260]
Hi there!

The most violent star death is a Supernova. This is the massive explosion of a supergiant star as it's fuel source runs out and it can no longer fuse iron at its core safely. This causes the star to swell to unstable sizes until it explodes in a Supernova. The amount of energy that is output during a supernova is equivalent to all the energy our own Sun outputs in its whole lifetime. 
6 0
4 years ago
An object with a resistance of 28 Ω has 76 V applied to it. How much electric current is going through this object? Answer in un
12345 [234]

Answer : The electric current of a circuit is, 2.8 A.

Explanation :

Using Ohm's law :

V=I\times R

Or,

I=\frac{V}{R}

where,

R = resistance of a circuit = 28 Ω

V = voltage of circuit = 76 volts = 76 V

I = current flowing in a circuit = ?

Now put all the given values in the above formula, we get :

I=\frac{V}{R}

I=\frac{76V}{28\Omega }

I=2.8A

Therefore, the electric current of a circuit is, 2.8 A

5 0
3 years ago
How does the kinetic energy of particles vary with temperature
Bezzdna [24]
When the average kinetic energy of the molecules go up ( a rise in temperature) the average speed of the molecules increases, the molecules now on average have more kinetic energy .
6 0
4 years ago
incline plane is given length 12m,load 600 newton,effort 200 Newton, Height 3 metre find its velocity ratio and mechanical advan
Salsk061 [2.6K]

Answer:

i. The velocity ratio of the plane is 4.

ii. The mechanical advantage of the plane is 3.

Explanation:

i. The velocity ratio (VR) of an inclined plane is ratio of its length to the height. It is given as;

VR = \frac{length of the plane}{height} = \frac{l}{h}

Given: l = 12 m, L = 600 N, E = 200 N, h = 3 m.

So that,

VR = \frac{12}{3}

     = 4

The velocity ratio of the plane is 4.

ii. Mechanical advantage (MA) expresses the relationship between the load overcome to effort applied.

MA = \frac{Load}{Effort} = \frac{L}{E}

      = \frac{600}{200}

      = 3

The mechanical advantage of the plane is 3.

Therefore, the velocity ratio of the inclined plane is 4, and its mechanical advantage is 3.

7 0
3 years ago
1. Since sleep is so important, we might wonder why people so often fail to get a sufficient amount
ziro4ka [17]

Answer: 9/10

Explanation:

because it's really important and makes you energetic

8 0
3 years ago
Other questions:
  • The interference of two sound waves of similar amplitude but slightly different frequencies produces a loud-soft-loud oscillatio
    6·2 answers
  • Ralphie runs north 0.5 km, then turns east and runs 2.0 km, turns south and runs 1.5 km, turns west and runs another 1km. What i
    10·1 answer
  • Describe the acid-catalyzed second slow step in the hydrolysis of an ester.
    10·1 answer
  • Would you be doing any more work by going up the stairs twice as fast?
    10·1 answer
  • _?_ and electricity are NOT SOURCES of electricity.
    7·1 answer
  • How much water can moss hold PLEASE HELP
    14·1 answer
  • What changes would a cold front bring to an area with warm, dry weather?
    15·2 answers
  • A lever is used to lift a heavy rock. The rock has a mass of 800 N. It requires 200 N of force to lift the rock using the lever.
    7·1 answer
  • Give two alterations in a generator to produce more electromotive force​
    15·2 answers
  • Which pair of triangles can be proven congruent by the hl theorem?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!