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Sophie [7]
3 years ago
10

Four compasses are placed around a wire, as shown. What is the best conclusion that can be drawn?

Physics
2 answers:
Usimov [2.4K]3 years ago
5 0

The best conclusion that can be drawn is that D) A current does not flow in the wire

Sati [7]3 years ago
5 0

Answer: The correct answer is (D).

Explanation:

If the current is flowing in the wire then the compass shows the deflection due to the magnetic field around the current flowing wire.

In the given problem, four compasses are placed around a wire, as shown in the given figure. The compass is not showing any deflection. It means that there is no magnetic field around the wire. It can be concluded that the current is not flowing in the wire.

Therefore, the correct option is "A current does not flow in the wire".

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In the context of studying major bodies of our solar system, what category of object does our moon best fit?.
Mumz [18]

The simplest, obvious category is " <em>Satellites</em> " .

But there's a lot of good reason to call it "Component of Binary Planet" .

As a fraction of the size and mass of its planet, our moon is the largest in the solar system.  

Several writers have pointed out that an alien astronomer studying our solar system might describe the 3rd body from the Sun as a "Binary planet".  

4 0
2 years ago
Two spherical drops of mercury each have a charge of 0.10 nC and a potential of 300 V at the surface. The two drops merge to for
hodyreva [135]

Answer:

V = 228\ V

Explanation:

given,

charge of two spherical drop = 0.1 nC

potential at the surface = 300 V

two drops merge to form a single drop

potential at the surface of new drop = ?

V = \dfrac{kq}{r}

r = \dfrac{9\times 10^9\times 0.1 \times 10^{-9}}{300}

r = 0.003 m

volume = 2 \times \dfac{4}{3}\pi r^3

            = 2 \times \dfac{4}{3}\pi \times 0.003^3

            = 2.612 × 10⁻⁷ m³

\dfac{4}{3}\pi R^3 = 2.612\times 10^{-7}

R =\sqrt[3]{\dfrac{2.612 \times 10^{-7}\times 3}{4\times \pi}}

R = 0.00396 m

V = \dfrac{kq}{r}

V = \dfrac{9\times 10^9 \times 0.1 \times 10^{-9}}{0.00396}

V = 227.27

V = 228\ V

6 0
3 years ago
How many groups are in the modern periodic table?
nasty-shy [4]

Answer:

18 groups are in the modern periodic table

6 0
2 years ago
Read 2 more answers
What is the process that changes smaller atoms into larger ones in a star
Alisiya [41]

Answer:

Nuclear fusion

Explanation:

In fusion, many nuclei (the centers of atoms) combine together to make a larger one (which is a different element). ... A star's mass determines what other type of nucleosynthesis occurs in its core (or during explosive changes in its life cycle).

5 0
3 years ago
Technician A says that low pressure smoke installed in the fuel system can be used to check for leaks. Technicians B says that n
pickupchik [31]

Answer:

A. Technician A only.B.

Explanation: The fuel system of a vehicle is made up of the fuel pump,the fuel filter,the injector or carburettor and the fuel tank. The main function of the fuel system is supply fuel to the engine of a vehicle. In order to check for leakage in the fuel system a small pressure smoke is usually installed in the fuel system.

Nitrogen at low pressure has also been used to check for leakage in the fuel system of a vehicle.

4 0
3 years ago
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