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stealth61 [152]
3 years ago
13

As seen, any object with electric charge, stationary or moving, other than the charged object that created the field, experience

s a force in an electric field. Also, any object with electric charge, stationary or moving, can create an electric field. Similarly, an electric current or a moving electric charge, other than the current or charge that created the field, experiences a force in a magnetic field, and an electric current created a magnetic field.
a. To understand how a moving charge can also create a magnetic field, consider a particle with charge q moving with velocity v. Define the position vector r = r. r leading from the particle to some location. Show that the magnetic field at that location is

B= µo/4π= qv x r/r^2

b. Find the magnitude of the magnetic field 1.05 mm to the side of a proton moving at 1.50 x 10^7 m/s.
c. Find the magnetic force on a second proton at this point, moving with the same speed in the opposite direction.
d. Find the electric force on the second proton

Physics
1 answer:
sammy [17]3 years ago
6 0

Answer:

The answer and explanation is in the attached file

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4.74 * 10^-3

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An 8.0-ohm resistor and a 6.0-ohm resistor are connected in series with a battery. The potential difference across the 6.0-ohm r
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Answer:

a) 14 Ω

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Explanation:

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R = 14 Ω

b) The current in the 6.0 Ω resistor can be found with Ohm's law:

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V = 28 V

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Read 2 more answers
Calculate the acceleration of a 1000 kg car if the motor provides a small thrust of 1000 N and the static and dynamic friction c
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Explanation :

It is given that,

Mass of the car, m = 1000 kg              

Force applied by the motor, F_A=1000\ N

The static and dynamic friction coefficient is, \mu=0.5

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F_A-\mu mg=ma

\dfrac{F_A-\mu mg}{m}=a

a=\dfrac{1000-0.5(1000)(9.81)}{1000}

a=-3.905\ m/s^2

So, the acceleration of the car is -3.905\ m/s^2. Hence, this is the required solution.

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If we want to describe work , we must have what ?
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An external force that is being applied in the direction of the displacement
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