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natita [175]
3 years ago
5

To review relationships among electric potential, electric potential energy, and force on a test charge

Physics
1 answer:
adelina 88 [10]3 years ago
5 0

Answer:

positive, negative, positive

Explanation:

Electric field lines are the imaginary lines that is the path followed by an isolated unit positive charged particle in an electric field.

The direction of electric field at that point is determined by drawing the tangent at that point on the electric field line.

Part A

The electric field lines always begin at <u>positive</u> charges and end at <u>negative</u> charges.

One could also say that the lines we use to represent an electric field indicate the direction in which a <u>positive</u> test charge would initially move when released from rest.

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Two concentric conducting spherical shells produce a radially outward electric field of magnitude49,000 N/C at a point 4.10 m fr
Korolek [52]

To solve this problem it is necessary to apply the concepts related to the electric field according to the definition of Coulomb's law.

 The electric field is defined mathematically as a vector field that associates to each point in space the (electrostatic or Coulomb) force per unit of charge exerted on an infinitesimal positive test charge at rest at that point.

Mathematically this can be described as:

E = \frac{1}{4\pi \epsilon_0}\frac{q}{r^2}

Where,

\epsilon_0 = permittivity of free space

r = Distance

q = Charge

E = Electric Field

Our values are given as,

E= 49.000N/C

r= 4.1m

\epsilon_0=8.854*10{-12}C^2N^{-1}m^{-2}

Replacing we have,

E = \frac{1}{4\pi \epsilon_0}\frac{q}{r^2}

49000 = \frac{1}{4\pi (8.854*10{-12})}\frac{q}{(4.1)^2}

q= 9.16*10^{-5} C

q= 91.6\mu C

Therefore the amoun of charge on the outer surface of the larger shell is 91.6 \mu C

6 0
4 years ago
What is an example of a renewable resource?
alukav5142 [94]

A car A house A phone they all can be renewable

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4 years ago
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You are in a car travelling to dinner when a light ahead suddenly turns red.
mamaluj [8]

Answer:

The car needs nearly 2.6 s

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4 years ago
The ideas that the universe began at a single point and has been expanding since its formation are the main premises of which of
Basile [38]
The big bang theory describes and claims that the universe has been created through cosmic expansion originating from a single point.

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3 years ago
2. A rock is dropped from rest at the top of a 10 meter tall building. How much time does the rock
ivann1987 [24]

Answer:

1.4 seconds

Explanation:

here u= 0

v= ?

h= 10m

g= 9.8 m/ s*2

using 2as = v^2 - u ^2

2x9.8x10 = v^2 - 0

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v = 14 m

time = v- u/ a

14 / 98

1.4 seconds

7 0
3 years ago
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