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
olchik [2.2K]
4 years ago
15

A horizontal rod 0.250 m long is mounted on a balance and carries a current. At the location of the rod a uniform horizontal mag

netic field has a magnitude of 6.10×10−2 T and direction perpendicular to the rod. The magnetic force on the rod is measured by the balance and is found to be 0.120 N . What is the current?
Physics
1 answer:
Karo-lina-s [1.5K]4 years ago
7 0

Answer:

The current is 7.87 A.

Explanation:

Given that,

Length = 0.250 m

Magnetic field B= 6.10\times10^{-2}\ T

Magnetic force = 0.120 N

We need to calculate the current

Using formula of magnetic force

F=BIL

I=\dfrac{F}{BL}

Where, B = magnetic field

I = current

l = length

F = force

Put the value into the formula

I=\dfrac{0.120}{6.10\times10^{-2}\times0.250}

I=7.87\ A

Hence, The current is 7.87 A.

You might be interested in
A comet of mass 1.20 × 10¹⁰kg moves in an elliptical orbit around the Sun. Its distance from the Sun ranges between 0.500 AU and
irina [24]

The eccentricity of its orbit is $$U=-2.13 \times 10^{17} \mathrm{~J} .\end{aligned}$$

<h3>What is mass?</h3>
  • Mass is a physical body's total amount of matter. It also serves as a gauge for the body's inertia or resistance to acceleration (change in velocity) in the presence of a net force. The strength of an object's gravitational pull to other bodies is also influenced by its mass.
  • The kilogram is the SI unit of mass (kg). In science and technology, a body's weight in a given reference frame is the force that causes it to accelerate at a rate equal to the local acceleration of free fall in that frame.
  • For instance, a kilogram mass weighs around 2.2 pounds at the surface of the planet. However, the same kilogram mass would weigh just about 0.8 pounds on Mars and about 5.5 pounds on Jupiter.
  • An object's mass is a crucial indicator of how much stuff it contains. Weight is a measurement of an object's gravitational pull. It is influenced by the object's location in addition to its mass. As a result, weight is a measurement of force.

The length of the semi-major axis is calculated as follows:

where, $G=6.67 \times 10^{-1} \mathrm{~m}^3 / \mathrm{kgs}$

$M=1.99 \times 10^{30} \mathrm{~kg}=$mass of sur

$m=1.20 \times 10^{10} \mathrm{~kg}$ - a mass of the comet

$$\begin{aligned}\therefore \quad \text { At aphelion, } r &=50 \times U \\&=50 \times 1.496 \times 10^{11} \mathrm{~m} . \\U=-\frac{6.67 \times 10^{-11} \times \mathrm{m} 1.99 \times 10^{30} \times 1.20 \times 10^{10}}{50 \times 1.496 \times 10^{11}} \\U=-2.13 \times 10^{17} \mathrm{~J} .\end{aligned}$$

$$U=-2.13 \times 10^{17} \mathrm{~J} .\end{aligned}$$

To learn more about mass, refer to:

brainly.com/question/3187640

#SPJ4

4 0
2 years ago
What kind of scientist investigation involve making observations
Ivahew [28]
When you study animals.
6 0
4 years ago
Read 2 more answers
Among the largest passenger ships currently in use, the Norway has been in service the longest. The Norway is more than 300 m lo
LenaWriter [7]

Answer:

6.33\times 10^8\ kg\cdot m/s

Explanation:

Mass of the ship (m) = 6.9 × 10⁷ kg

Speed of the ship (v) = 33 km/h

First, let us convert the speed from km/h to m/s using the conversion factor.

We know that, 1 km/h = 5/18 m/s

So, 33 km/h = 33\times \frac{5}{18}=9.17\ m/s

Now, we know, the momentum of an object only depends on its mass and speed. Momentum is independent of the length of the object.

So, here, length of the ship doesn't play any role in the determination of the momentum.

Magnitude of momentum of the ship = Mass × Speed

                                                             = (6.9\times 10^7\ kg)(9.17\ m/s)

                                                             = 6.33\times 10^8\ kg\cdot m/s

Therefore, the magnitude of ship's momentum is 6.33\times 10^8\ kg\cdot m/s.

6 0
4 years ago
Why environmental science is about social action​
stepan [7]

Answer:

<h3>Environmental social science is the application of social science – broadly the study of the relationship between individuals in their context within society – and its application to our understanding of environmental issues.</h3>

Explanation:

<h3>mark as brainliast</h3><h3>indian genius sarthak</h3>
7 0
3 years ago
A piston releases 18 J of heat into its surroundings while expanding from 0.0002 m^3 to 0.0006 m^3 at a constant pressure of 1.0
Elodia [21]

Answer:

value of heat is 18 J

2. step by step

formular w=p(volume1-volume2)

w= 1.0×10^5(0.0006-0.0004)

w= 40 J

8 0
3 years ago
Other questions:
  • The stratospheric chemical that prevents much of the solar ultraviolet radiation from penetrating to earth's surface is:
    11·1 answer
  • Does Iron repel or attract the South Pole of a magnet?
    8·1 answer
  • What is the internal energy (to the nearest joule) of 10 moles of Oxygen at 100 K?
    15·1 answer
  • A hoop and a disk with uniform mass distribution have the same radius but the total masses are not known. Can they both roll dow
    13·1 answer
  • Name three insulators
    11·2 answers
  • The PVT behavior of a certain gas is described by the equation of state: P(V − b) = RT where b is a constant. If in addition CV
    10·1 answer
  • water is boiling in a pan at 100c if heat is transferred to the pan at a rate of 2 kw how much water in kg will evaporate in 10m
    11·1 answer
  • Acording to conservaton of energy
    15·1 answer
  • 8.92 x 10 ^ 6 (convert from scientific notation to a standard aka regular number)
    13·2 answers
  • Which trophic level ingests the most biomass in order to receive the energy they need?.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!