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Anna71 [15]
3 years ago
6

Which of the following are true statements about the electric field? a. A moving charge produces a magnet anomaly. b. The electr

ic field points towards a negative charge and away from a positive charge. c. The direction of the electric field is the direction of acceleration of a positive test charge. d. The electric field is a charge-specific force field independent of any test charge. e. Equipotential lines imply magnitude and direction of the electric field. f. The electric field is a vector field that is found by taking the gradient of the negative potential. g. The electric field inside a spherical conducting shell in 3D is zero. h. If the electric field inside a conductor is nonzero, charges must not be moving; that is, there is a zero current. i. No electric field exists between the plates of a charged capacitor. j. The electric lines of force indicate the vector force experienced by a positive test charge released at a particular point.
Physics
1 answer:
mars1129 [50]3 years ago
4 0

Answer:

a,b,c,d,,f, g, j

Explanation:

e) equipotential lines are lines connecting points of equal potential

h) electric field inside the conductor is non-zero even when there is net movement of charge or non-zero current.

i) capacitors' plates are charged and an electric field exists between the plates.

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Citrus2011 [14]

Answer:

The correct answer is "6666.67 N".

Explanation:

The given values are:

Mass,

m = 0.100

Relative speed,

v = 4.00 x 10³

time,

t = 6.00 x 10⁻⁸

As we know,

⇒  F=m(\frac{\Delta v}{\Delta t} )

On substituting the given values, we get

⇒      =0.100\times 10^{-6}(\frac{4\times 10^3}{6\times 10^{-8}} )

⇒      =6666.67 \ N

7 0
3 years ago
Assume that a gravitational anomaly in the solar system has shifted a field of asteroids into Earth’s orbit, and the field is no
Mandarinka [93]

Answer:

An asteroid is a minor planet of the inner Solar System. Historically, these terms have been applied to any astronomical object orbiting the Sun.

7 0
2 years ago
During a baseball game, a batter hits a high pop-up. If the ball remains in the air for 6.22 s, how high does it rise? The accel
BigorU [14]

Answer:

47.4 m

Explanation:

When an object is thrown upward, it rises up, it reaches its maximum height, and then it goes down. The time at which it reaches its maximum height is half the total time of flight.

In this case, the time of flight is 6.22 s, so the time the ball takes to reach the maximum height is

t=\frac{6.22}{2}=3.11 s

Now we consider only the downward motion of the ball: it is a free fall motion, so we can find the vertical displacement by using the suvat equation

s=ut+\frac{1}{2}gt^2

where

s is the vertical displacement

u = 0 is the initial velocity

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Solving the  formula, we find

s=\frac{1}{2}(9.8)(3.11)^2=47.4 m

7 0
3 years ago
A 4-79 permalloy solenoid coil needs to produce a minimum inductance of 1.1 . If the maximum allowed current is 4 , how many tur
daser333 [38]

The related concept to solve this exercise is given in the expressions that the magnetic field has both as a function of the number of loops, current and length, as well as inductance and permeability. The first expression could be given as,

The magnetic field H is given as,

H = \frac{nI}{l}

Here,

n = Number of turns of the coil

I = Current that flows in the coil

l = Length of the coil

From the above equation, the number of turns of the coil is,

n = \frac{Hl}{I}

The magnetic field is again given by,

H = \frac{B}{\mu_t}

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We have to obtain n, that

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n = 27.5 \approx 28

Therefore the number of turn required is 28Truns

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3 years ago
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Lisa [10]
Answer: Not 100% sure but I believe the answer is B.

Hope this helps! ^^
6 0
3 years ago
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