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
swat32
3 years ago
14

Two long, parallel wires carry currents of different magnitudes. if the amount of current in each wire is doubled, what happens

to the magnitude of the force between the wires
Physics
1 answer:
Mrac [35]3 years ago
4 0
The force per unit of length between two wires carrying current is
\frac{F}{L}= \frac{\mu_0 I_1 I_2}{2 \pi r}
where I1 and I2 are the currents in the two wires, while r is the distance between them.

We can see from the formula that the force is proportional to the product between I1 and I2: F \sim I_1 I_2
so, if we double both I1 and I2, we get a factor 4:
F' \sim (2I_1 )(2I_2)=4 I_1 I_2 =4 F
so, the force between the wires will be 4 times the original value.
You might be interested in
The total resistance of a parallel circuit is 25 ohms. If the total current is 100mA, how much current is through a 220 ohm resi
gulaghasi [49]

Answer:

The current across the resistance is 0.011 A.

Explanation:

Total resistance, R = 25 ohms

Total current, I = 100 mA = 0.1 A

Let the voltage is V.

By the Ohm's law

V = I R

V = 0.1 x 25 = 2.5 V

Now the resistance is R' = 220 ohm

As they are in parallel so the voltage is same. Let the current is I'.

V = I' x R'

2.5 = I' x 220

I' = 0.011 A

7 0
2 years ago
Why do temperatures on the moons surface vary ncyb more than temperatures on earth
ollegr [7]

Answer:

The moon has no atmosphere

Explanation:

The temperatures on the surface of the Moon vary much more than those on Earth because the moon has no atmosphere (third answer in the list), and therefore there are no molecules that could retain residual heat and make the change from day to night a softer transition.

5 0
2 years ago
2 objects have a total momentum of 400kg m/s, they collide. Object A’s mass is5kg & object B’s mass is 11kg. After the colli
ss7ja [257]

Answer:

Explanation:

We shall apply law of conservation of momentum .

Momentum before collision = momentum after collision .

Momentum before collision = 400 kg m/s

Momentum after collision = 5  x v + 11 x 15

where v is velocity of A after the collision .

5  x v + 11 x 15 = 400

5 v = 400 - 165

5v = 235

v = 47 m /s .

3 0
3 years ago
An object of mass 8kg moved around the circle of radius 4m. with a constant speed of 15m/s.
Marianna [84]

Answer:

a. Angular velocity = 0.267rad/s.

b. Centripetal acceleration = 56.25m/s.

Explanation:

<u>Given the following data;</u>

Mass, m = 8kg

Radius, r = 4m

Constant speed, V = 15m/s

a. To find the angular velocity

Angular velocity = radius/speed

Substituting into the equation, we have;

Angular velocity = 4/15

Angular velocity = 0.267rad/s

b. To find the acceleration;

Centripetal acceleration = V²/r

Substituting into the equation, we have;

Centripetal acceleration = 15²/4

Centripetal acceleration = 225/4

Centripetal acceleration = 56.25m/s.

4 0
3 years ago
Light that has a wavelength of 554 nm is incident on a single slit that is 10 μm wide. Determine the angular location of the fir
VMariaS [17]
66.3 = 3% 9.528 correct 3.176 correct
7 0
3 years ago
Other questions:
  • A piston above liquid in a closed container has an area of 1m2. The piston carries a load of 350 kg. What will be the external p
    11·2 answers
  • According to this graph, which statement describes how the amount of iron changes over time in the reaction
    13·1 answer
  • The particles of a medium will settle the rest position after a mechanical wave passes
    13·2 answers
  • What happens if a species is unable to adapt to a changing environment
    8·2 answers
  • An object is electrically charged if the amounts of positive and negative charge it contains are not _______.
    7·2 answers
  • Which of the following is not true of a conductor? A. It is used in electrical circuits. B. It allows easy passage of moving cha
    12·2 answers
  • The symbol for the hydroxide ion is
    15·2 answers
  • If a cat falls off a ledge, the Earth pulls the cat to the ground with the force of gravity. According to Newton's Third Law the
    7·2 answers
  • A student is planning an experiment to find
    14·2 answers
  • A roller coaster travels 41.1 m at an angle of 40.0°
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!