0
Trains (and other vehicles that move rapidly through the air or water) are shaped to provide low resistance to movement. For vehicles that move through air, the smaller the front of the vehicle, the less resistance to air flow. If the front of the vehicle is blunt (like a flat wall), then when it moves, the air must flow around the wall on all sides. This causes the air to build up pressure in front as the wall pushes against the air. To reduce the pressure, if the vehicles is "stream-lined", or made to resemble a rain-drop shape, or an arrow shape, with a sharp point tapering back to a larger shape, then the air pressure in front of the vehicles is reduced, resulting in less power spent to overcome air resistance. Also, projections and things that stick out are eliminated or minimized to further reduce air friction.
What else can I help you with?
How can you reduce the resistance in a wire?
You can reduce the resistance in a wire by increasing the cross-sectional area of the wire, using a material with lower resistivity, or shortening the length of the wire. These methods can help to lower the resistance and improve the flow of electric current.
How does temperature affect current flow in electrical circuits?
Temperature can affect current flow in electrical circuits by changing the resistance of the materials in the circuit. As temperature increases, the resistance of the materials also increases, which can reduce the flow of current in the circuit. Conversely, as temperature decreases, the resistance decreases, allowing for more current to flow through the circuit.
Can Water can decrease a substance resistance to the flow of electricity?
Reduce the temperature of the conductor.
How does streamlining reduce water Resistance?
Streamlining reduces water resistance by minimizing the turbulent flow of water around an object. This typically involves shaping the object to reduce drag, such as through a sleek design that allows water to flow smoothly over the surface. By reducing resistance, streamlining can increase speed or efficiency in water-based activities like swimming or boat racing.
How can we design a circuit with less resistance to allow more current flow?
To design a circuit with less resistance for more current flow, you can use conductive materials with lower resistance, increase the thickness of the wires, and minimize the length of the wires. Additionally, using components like resistors with lower resistance values can also help reduce overall resistance in the circuit.
What in electricity is like friction and tends to reduce the amount of current flow like buildup in a pipe reduces water flow?
Resistance inhibits current flow.
How can you reduce the resistance in a wire?
You can reduce the resistance in a wire by increasing the cross-sectional area of the wire, using a material with lower resistivity, or shortening the length of the wire. These methods can help to lower the resistance and improve the flow of electric current.
What specifically does resistance reduce the flow of?
Resistance is the opposition of the atoms in any materiel to the movement of the electrons of a certain current ... so the resistance is a long wire, and thus more atoms to pass through that's how it reduces the electron flow
How does temperature affect current flow in electrical circuits?
Temperature can affect current flow in electrical circuits by changing the resistance of the materials in the circuit. As temperature increases, the resistance of the materials also increases, which can reduce the flow of current in the circuit. Conversely, as temperature decreases, the resistance decreases, allowing for more current to flow through the circuit.
What is blood flow resistance?
The resistance of blood flow is what?
Can Water can decrease a substance resistance to the flow of electricity?
Reduce the temperature of the conductor.
How does streamlining reduce water Resistance?
Streamlining reduces water resistance by minimizing the turbulent flow of water around an object. This typically involves shaping the object to reduce drag, such as through a sleek design that allows water to flow smoothly over the surface. By reducing resistance, streamlining can increase speed or efficiency in water-based activities like swimming or boat racing.
How can we design a circuit with less resistance to allow more current flow?
To design a circuit with less resistance for more current flow, you can use conductive materials with lower resistance, increase the thickness of the wires, and minimize the length of the wires. Additionally, using components like resistors with lower resistance values can also help reduce overall resistance in the circuit.
Does resistance flow through a circuit?
No. Resistance does not flow. Resistance is the characteristic of a material that resists the movement of electrons and thus the flow of electrical current.
Does resistance depend upon current?
The higher the resistance the lower the current flow. It restricts the flow of electrical current. The resistance will not depend upon the current. The current flow will depend on the resistance.
How do you reduce air resistance?
Give more flow. (air passage ways) If your in a car and theres a hurricane near you, you don't want your windows closed. There would be air resistance and move your car.
A fluid resistance to flow is called?
A fluid's resistance to flow is called its viscosity.
