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Why is a copper wire in a closed circuit does not get heated but a nichrome does?
this is because copper wire offers no resistance and thus electric current passes through them without producing heat energy whereas in nichrome offers a large resistance and thus the mechanical energy of the drifting electrons changes to heat energy rapidly .
Is nichrome a good conductor of electricity?
No, it has high specific resistance. But not an insulator. Due to high specific resistance it gets heated as current flows through it. So it is used in heating elements of heating electrical gadgets. The most advantage of Ni-Cr alloy is that it is not easily oxidised.
Why the temperature increases as current increases?
The current is the flow of electrons. Temperature is the movement of atoms. As the current increases there is more collisions between the atoms and the electrons. Some of the energy from the electrons is transferred to the atoms, thus they move faster and so the temperature increases.
What is the difference between anode and cathode in a battery?
In a battery, the anode is where the electric current flows in, while the cathode is where the current flows out. The anode is negatively charged, and the cathode is positively charged. This flow of electrons between the anode and cathode creates the electrical energy in a battery.
What is the difference between anode and cathode in terms of their functions in an electrical circuit?
In an electrical circuit, the anode is where current flows into the device, while the cathode is where current flows out. The anode is positively charged, attracting electrons, while the cathode is negatively charged, releasing electrons.
What happens to the total charge on a wire when current flows through the wire?
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What happens to the total charge on a wire when a current flows through wire?
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Why is a copper wire in a closed circuit does not get heated but a nichrome does?
this is because copper wire offers no resistance and thus electric current passes through them without producing heat energy whereas in nichrome offers a large resistance and thus the mechanical energy of the drifting electrons changes to heat energy rapidly .
What happens to the current at a junction in a parallel circuit?
In a parallel circuit the current divides when it comes to a junction. Part of the current flows through one branch and the other part flows through the other.When the two branches have the same resistance, the same current flows through each branch.When the two branches have different resistances, a bigger current flows through the branch with the smaller resistance - it's just easier this way!Hope i helped ;)
What happens to the charge of a wire when a current flows through it?
When a current flows through a wire, the charge within the wire does not change. The charge carriers (usually electrons) move along the wire, creating an electric current, but the total charge remains constant.
What metal or material is used in the rear window defroster?
A High resistance wire, such as NiChrome; the wire heats up when amperage flows through.
What happens to the coil when a current flows through?
When a current flows through a coil, it generates a magnetic field around the coil according to Ampere's law. This magnetic field can attract or repel other nearby magnetic materials and can induce a voltage or current in nearby conductors through electromagnetic induction.
What flows through a complete circuit?
Current flows through a complete circuit.
When a electric current flows through a wire it creates a?
When an electrical current flows through a wire it creates what is called an Electro Magnetic Field.A magnetic field is create when an electric current flows through a wire.
What happens when a direct current is passed through a helical spring?
in an adjacent coils ,the current flows in same direction so there is force of attraction shortening the coils.
The total current that flows through a circuit is the same as the current that flows through each individual resistor connected in series?
True
What happens when the torch is switched on?
current flows and we have light from bulb....
