Why does electricity become hot when it passes through a conductor?
When an electric current flows through a conductor, it becomes hot because,the resistance of the conductor blocks the electricity flow by making collision of free electrons with the atoms and impurities. This collision produces heat energy. - Amount of the electricity flow. - Time of the electricity flow. - Resistance of the conductor.
What happens when an electric current flows through a conductor?
When an electric current flows through a conductor, it becomes hot because,the resistance of the conductor blocks the electricity flow by making collision of free electrons with the atoms and impurities. This collision produces heat energy. - Amount of the electricity flow.
What is the heating effect of current?
When an electric current is passed through a conductor it becomes hot. This is called heating effect of current. The heating effect of current is obtained by the transformation of electrical energy into heat energy. A battery or a cell is a source of electrical energy.
How does current flow through a resistor?
The chemical reaction within the cell generates the potential difference between its two terminals that sets the electrons in motion to make the current flow through a resistor. The source has to keep expending its energy.
When electric current flows through a conductor it becomes hot Why?
When an electric current flows through a conductor, it becomes hot because,the resistance of the conductor blocks the electricity flow by making collision of free electrons with the atoms and impurities. This collision produces heat energy.
What happens when electric current flows through a conductor?
Explanation: When an electric current flows in a conductor, it flows as a drift of free electrons in the metal. Electricity flows easily through a conductor because the electrons are free to move around in the object. Whenever there is a movement of electrons through a conductor, an electric current is created.
When a current flows through a conductor What is its temperature?
increasesSo, the temperature of the conductor increases because of the current flow through it. So, we can say that when electric current flows through a conductor, the temperature of the conductor rises. Hence, the correct answer is option A.
When electric current flows through a conductor then it gets which charge?
The correct response to the given question is option 3: Remains neutral. When current runs through a conductor or wire, it does not mean that it is positively or negatively charged. The current is caused by the movement of electrons caused by a voltage differential.
When current flows through ohmic conductor its temperature?
Hence, temperature increases.
Answer
When electricity moves through anything -- wires or bodily tissues -- there are actual electrons (typically) moving. These electrons are being pulled along by an electric field, but they're also bumping into the atoms that make up the wire or bodily tissue. When an electron bumps into an atom, it transfers some of its kinetic energy to that atom.
Answer
When an electric current flows through a conductor, it becomes hot because,the resistance of the conductor blocks the electricity flow by making collision of free electrons with the atoms and impurities. This collision produces heat energy.
What is a voltmeter?
A voltmeter is to be connected in the circuit to measure potential difference across a conductor. Mention the type of combination in which it should be connected with the conductor. (2014) Answer: The voltmeter is always connected in parallel across the conductor. Question 4.
What is the difference between a neutral and live wire?
The live wire has red insulation covering where as neutral wire has black insulation covering. (ii) The two wires coming out of the meter are connected to a main switch which is placed in a distribution box. It is used to switch off the electric supply when required so as to repair any faults in the internal wiring.
What happens when one electrical appliance stops working?
In series circuit, if one electrical appliance stops working due to some defect then all other appliances also stop working because the whole circuit is broken. In series circuit, all the electrical appliances have only one switch due to which they cannot be turned off or turned on separately. Question 3.
Why is parallel circuit used in domestic wiring?
Answer: The arrangement of lights and various other electrical appliances in parallel circuits is used in domestic wiring because of following advantages: In parallel circuits, if one electrical appliance stops working due to some defect, then all other appliances keep working normally.
How does electricity affect air pollution?
Most of the electrical appliances use electrical energy which is generated by burning fossil fuel. The burning of fossil fuels causes air pollution. The production of hydroelectricity causes ecological imbalance. Therefore, by using less electricity he is indirectly causing less pollution.
What gases are used in electric bulbs?
Give reason for the following: (i) Electric bulbs are usually filled with chemically inactive gases like nitrogen and argon. (ii) Copper and aluminium wires are usually employed for electricity transmission. (iii) Fuse wire is placed in series with the device. (2012) Answer: