Does the electrical conductivity of a wire affect the strength of an electromagnet?

Answers

Answer 1

Answer: The strength of the electromagnet depends directly on the
current (amps) in the wire that the coil is made out of.
That current is going to be determined by the voltage of the
battery or power supply that powers the magnet, and by the
resistance of the wire. So yes, the properties of the wire do
have a direct effect on the strength of the magnet. If you
tried to make an electromagnet with a coil of wet spaghetti,
it would work, but you would need a humongous power supply
to get any significant strength out of the magnet.

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An ideal gas is enclosed in a piston-cylinder apparatus with the piston being freely movable. Given that LaTeX: \DeltaΔE is positive and LaTeX: \DeltaΔH is negative following a process, ____ the system absorbs heat and expands during the process. the system absorbs heat and contracts during the process. the system loses heat and expands during the process. the system loses heat and contracts during the process. the system loses heat but neither expands nor contracts during the process.

Answers

Clear question is;

An ideal gas is enclosed in a piston-cylinder apparatus with the piston being freely movable. Given that ΔE is positive and ΔH is negative following a process,

pick one

A) the system absorbs heat and expands during the process.

B) the system absorbs heat and contracts during the process.

C) the system loses heat and expands during the process.

D) the system loses heat and contracts during the process.

E) the system loses heat but neither expands nor contracts during the process.

Answer:

Option A is correct.

Explanation:

In thermodynamics, when the change in energy which is ΔE of a system is positive, it means that the system is undergoing an endothermic process. An endothermic process is simply one where heat is absorbed from the surroundings

Now, when change in enthalpy which is ΔH is negative, it means that it's an exothermic reaction. Exothermic means it releases heat to the surroundings. This means work is positive because the system does work on the surroundings. Thus it will expand.

So the correct answer is;

heat is absorbed from the surroundings and will expand during the process.

If you increase the height from which a water droplet falls, will this change the pattern of the ripples produced?

Answers

yes because it is coming from a different height and speed

In a transverse wave, the motion of the disturbance is ____ to the wave motion. A. In the same direction
B. Perpendicular
C. Opposite
D. Parallel

Answers

Good afternoon,

B. Perpendicular

I hope this helped :)

In a transverse wave, the motion of the disturbance is PERPENDICULAR to the wave motion.

Answer:
B. Perpendicular.

How does matter and energy move through the water cycle

Answers

energy moves through an ecosystem when an organism is eaten. As you go up each trophic level, 10% of energy is transferred up. Matter on the other hand, is neither lost or gained. so it just moves up the trophic levels

I have attached a photo to explain. (:

1 poinWhat exercise could you do that works on cardiovascular endurance and
muscular strength?*
Bicep Curls
Dips
Stairs
Squats
O Other:

Answers

stairs!

stairs are a great cardiovascular endurance exercise, and also help muscular strength in the legs and core.

hope this helps!

Water behind a dam has a certain amount of stored energy that can be released as the water falls over the top of the dam. It may be enough energy to turn a mill wheel or an electricity-generating turbine. Choose the term that best describes the type of energy stored in the water at the top of the dam. potential energy
kinetic energy
mechanical energy

Answers

Answer:

The answer is potential energy

Explanation:

The potential energy is the energy possessed by a body by virtue of it position

For example the water at the top of the dam is being held at a height h above the bottom of the dam

Then the potential energy

PE= weight of the water* the height

PE= m*g*h

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No two electrons can have the same four quantum numbers is known as the