Which statement is true physics

Two coils of wire are placed close together. Initially, a current of 3.04 A exists in one of the coils, but there is no current

Alchen [17]

Answer:

$M=0.0247H$

Explanation:

Given data

$V_{voltage}=4.29V\\I_{current}=3.04A\\t_{time}=1.75*10^{-2}s$

To find

Mutual inductance of the two-coil system

Solution

The mutual inductance given as:

M= (-VΔt)/ΔI

Substitute the given values

So

$M=-\frac{4.29V*1.75*10^{-2}s}{(0-3.04A)}\\ M=0.0247H$

4 0

2 years ago

At some distance from a point charge, the electric potential is 635.0 V and the magnitude of the electric field is 189.0 N/C. Fi

Nataliya [291]

Answer:

The distance from the charge is 3.35 m.

Explanation:

Given that,

Electric potential, V = 635 V

Magnitude of electric field, E = 189 N/C

We need to find the distance from the charge. We know that the relation between electric field and electric potential is given by :

$E=\dfrac{V}{d}$

d is the distance from charge

$d=\dfrac{V}{E}\\\\d=\dfrac{635}{189}\\\\d=3.35\ m$

So, the distance from the charge is 3.35 m. Hence, this is the required solution.

8 0

2 years ago

Which of the following equations can be used to calculate the current in a circuit?

sashaice [31]

Answer:

I need a picture

Explanation:

please elaborate. I need to get brainliest so I have to answer questions and get them right so send a picture so I can see the equation.

6 0

2 years ago

The planets Hox and Blox are near each other in the Dorgon system. The Dorgons have very advanced technology,

9966 [12]

<u>The following proposals would make the scientist to accomplish this goal:</u>

decreasing the distance between Hox and Blox
increasing the mass of Hox

increasing the mass of Hox and Blox

Answer: Options A, B, and E

<u>Explanation:</u>

The gravitational pull on an object by another, is nothing but the force that it exerts due to its gravity. Earth has gravity, so it pulls down everything that tends to move up. Similarly, Hox and Blox have gravitational pulls on each other, due to their gravitational forces.

$F = G \times\left(\frac{m_{1} \times m_{2}}{r^{2}}\right)$

Where,

F = force exerted on object

G – Gravitational constant

$m_{1} \text { and } m_{2}$ – Mass of two objects

r – Distance between two objects

This gravitational pull varies in phase with the mass of two bodies in relation, and inversely proportionate to the distance square. Hence, the scientist could do less the distance between the bodies, or else, spend to increase the size of one of them or both the bodies.

7 0

2 years ago

Read 2 more answers

Electronegativity affects the strength of intermolecular forces. A very electronegative atom will create a stronger negative cha

ANEK [815]

Answer:

Electronegative atom will create a stronger negative charge is true.

Explanation:

Given that,

Electronegativity affects the strength of intermolecular forces.

We know that,

Electronegativity :

Electronegativity is a ability of an atom, shared electron to itself.

In periodic table,

When we move left to right in period then the electronegativity increases.

When we move up to down in a group then the electronegativity decreases.

We know that,

The intermolecular forces are dipole-dipole interactions which is the strongest intermolecular force of attraction.

If the electronegativity of atom is more, then the atom gain negative charge.

When the attraction force is more in atoms then the electronegative will be more.

Hence, Electronegative atom will create a stronger negative charge is true.

6 0

2 years ago