A magnetic field forms around a moving electric charge, resulting in a magnetic field. Which does this describe?

A.
how electric charges can be used to make current flow

B.
how electric charges can be used to create a magnetic field

C.
how a magnetic field can be used to generate an electric current

D.
how a magnetic field can be used to generate electrons

Answers

Answer 1

Answer: B.
how electric charges can be used to create a magnetic field
(how I know, just took it, the test I mean)

Related Questions

Magnitude and Direction of Electric Fields??How would you do the following? A small object A, electrically charged, creates an electric field. At a point P located 0.250m directly north of A, the field has a value of 40.0N/C directed to the south. What is the charge of object A? (a)1.11×10^-9 C (b)-1.11x10^-9 C (c)2.78x10^-10 C (d)-2.78x10^-10 C (e)5.75x10^12 C (f)-5.75x10^12 C
What role does energy play when an object is not moving?
As a 2-kg ball rolls down a ramp, the net force on it is 10 N. What is the acceleration?
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Atoms have no electric charge because theyA. Have an equal number of charged and non charged particles.B. Have neutrons in their nuclei.C. Have an equal number of electrons and protons D. Have an equal number of neutrons and protons

At what launch angle will a projectile travel the farthest distance if launched on level ground? Multiple Choice: a. 45 degrees b. 60 degrees c. 20 degrees d. 30 degrees e. 75 degrees

Answers

Answer:

A. 45 degrees

Explanation:

A projectile travels the farthest when it is launched at an angle of 45 degrees.

The maximum range is 45 degrees, ignoring air resistance.

sin(2θ) = 1

∴ 2θ = π/2.

(2θ)/2 = (π/2)/2

θ = π/4

π/4 or 45°

Answer:

A. 45 degrees

Explanation:

Density is ____ per unit volume.

Answers

Answer:

mass

Explanation:

The density of a substance is defined as the ratio of mass of the substance to the volume of the substance.

It is a scalar quantity.

$Density = (mass)/(volume)$

Its SI unit is kg/m^3.

By comparing the densities we get the idea about how dense the substance is.

For example, cotton and iron, the density of cotton is much less than iron so the cotton is less dense than iron.

The relative density is defined as the ratio of density of substance to the density of water at 4 degree C.

The density of water is maximum at 4 degree C.

Final answer:

Density is the mass per unit volume.

Explanation:

Density is a physical property of matter that describes the mass of a substance per unit volume. It is typically expressed in units like grams per cubic centimeter or kilograms per cubic meter. Density helps identify and compare substances, as objects with higher density are heavier for a given volume, while less dense substances are lighter.

Density is the mass per unit volume of a substance or object, defined as p = m/V. The SI unit of density is kg/m³. For many situations, grams per cubic centimeter (g/cm³) are used for the densities of solids and liquids, and grams per liter (g/L) are used for gases.

Learn more about Density here:

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In the lungs there are tiny sacs of air, which are called alveoli. an oxygen molecule is trapped within a sac, and the uncertainty in its position is 0.12 mm. what is the minimum uncertainty in the speed of this oxygen molecule?

Answers

As we know that Heisenber's uncertainty law gives that

$\Delta x * \Delta P = (h)/(4\pi)$

here we know that

$\Delta x = uncertainty In Position = 0.12 mm$

$\DeltaP = uncertainty In Momentum = m*v$

now from the above formula we will have

$0.12 * 10^(-3)* 32*10^(-3)v = (h)/(4\pi)$

$3.84*10^(-6)*v = (6.6*10^(-34))/(4\pi)$

$v = 1.37 * 10^(-29)m/s$

so above is the uncertainty in the speed

Force is applied to an object and the object is moved over a distance in the same direction of the applied force" is the definition of (2 points)a. balanced force.
b. gravitational force.
c. power.
d. work

Answers

Answer:

The correct answer to your question is B. Gravitational force because the force is applied to one object as it is applied to the same direction.

Explanation:

its not work!!!

plz if you don"t know n answer to a question don"t answer it i could hurt others grade. brainly is for helping other not putting wrong answer and make the person get a bad grade

im just saying :)

Answer: IT IS NOT GRAVITATIONAL FORCE; I think it’s work

Explanation:

I put gravitational force and got it wrong

Caleb likes to take his fork and bang it on different surfaces to make different sounds. Based on Piaget's substages, we can assume that Caleb is: a) In the sensorimotor stage b) In the preoperational stage c) In the concrete operational stage d) In the formal operational stage

Answers

Based on Piaget's substages, we can assume that Caleb is: b) In the preoperational stage.

What does Krakauer hope to avoid by moving quickly up the face on the one rope? A) Altitude sickness. B) Frostbite. C) Falling into a crevasse. D) Running out of supplies.

Answers

By moving quickly up the face on one rope, Krakauer hopes to avoid falling into a crevasse (C).

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I am really struggling with this question because I can't find anything on aphelion and perihelion, it's not a topic we went over because it is an extra assignment. 4. How far away from the sun was Mercury at aphelion? On what day did aphelion occur?5. How far away from the sun was Mercury at perihelion? On what day did it occur?6. How many days elapsed between aphelion and perihelion? What percent of the time to complete one orbit was this?7. What was the average radius of Mercury in its orbit that you calculated? How does it compare to the accepted value of 0.387 AU? Calculate the percent error using the following equation. Show your work.If someone could explain it to me I would really appreciate it!

A center-seeking force related to acceleration is _______ force.A. centripetal B. centrifugal C. gravitational D. frictional

While traveling along a highway a driver slows from 24 m/sec to 15 m/sec in 12 seconds. What is the automobile’s acceleration?

If a radio and a bulb each of resistance 3 ohm are connected in series to a 12 volts battery, the potential difference across each will be;a) 3V b) 6V c) 12V d) 9V Can u please solve and then explain answer