The electricity that we use is the flow of electrons jumping from atom to atom within the atomic/molecular structure of the conducting material. Metals, like copper, commenly used for wires, have a dense molecular structure consisting of atoms that easily receive and release extra electrons. It does, however, require energy for an electron to pass through the space in between the atoms, resulting in a loss of energy. This loss of energy is mesured in resistance.
The longer the wire, the longer the chain of atoms an electron must jump between. Just like climbing a ladder, the longer the ladder, the more steps you must take to reach the end, and the more energy used.
Yes, a long wire typically has more resistance than a short wire due to increased electron collision and higher impedance over a longer distance. This is because resistance is directly proportional to the length of the wire.
No, resistance depends on the material, cross-sectional area, and temperature of the wire. A shorter wire will have less resistance compared to a longer wire since it offers less opposition to the flow of electrical current.
A falling elephant encounters a greater force of air resistance than a falling feather does. The force of air resistance can't be greater than the weight of the falling object. When the force of air resistance is equal to the weight of the falling object, the object stops accelerating, its falling speed becomes constant, and the force of air resistance doesn't get any bigger. So the force of air resistance against a falling feather can't be greater than the weight of the feather. But the force of air resistance against a falling elephant can be, and undoubtedly is, greater than the weight of a feather.
When air resistance is greater than the force of gravity acting on an object, it will slow down the object's descent. This is because the air resistance force counteracts the force of gravity, reducing the acceleration of the object as it falls.
The net force would be the difference between the applied force and the air resistance. If the applied force is greater than the air resistance, then the net force would be in the direction of the applied force. If the air resistance is greater than the applied force, then the net force would be in the opposite direction.
A long piece of wire will have more resistance in it than a shorter one of the same material.
Yes, a long wire typically has more resistance than a short wire due to increased electron collision and higher impedance over a longer distance. This is because resistance is directly proportional to the length of the wire.
the long handle provides a greater lever effect
No, resistance depends on the material, cross-sectional area, and temperature of the wire. A shorter wire will have less resistance compared to a longer wire since it offers less opposition to the flow of electrical current.
"Better" depends on how much resistance you need for your circuit design.A short thick wire will have less resistance than a long thin wire of the same substance.Whether that's better or worse depends on how you plan to use the wire.
As long or as short as you like. The only requirement is that the sum of any two sides must be greater than the third.
A falling elephant encounters a greater force of air resistance than a falling feather does. The force of air resistance can't be greater than the weight of the falling object. When the force of air resistance is equal to the weight of the falling object, the object stops accelerating, its falling speed becomes constant, and the force of air resistance doesn't get any bigger. So the force of air resistance against a falling feather can't be greater than the weight of the feather. But the force of air resistance against a falling elephant can be, and undoubtedly is, greater than the weight of a feather.
Thrust that is greater than Earth's gravity, and it must be sustained over a sufficiently long time. Alternately, the initial speed must be greater than the escape velocity.
The current in a short circuit may be very high because the resistance in the short circuit is probably less than the resistance in the original circuit.
Copper wire has greater resistance than aluminum wire. This is because copper is a better conductor of electricity than aluminum. This means that copper wire will have less resistance and will be able to carry more current with less energy loss.
the shunt generator wont be started .hehe
The current is greater than or equal to (6) divided by (the effective resistance of the circuit).