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When a wire carrying current is wound into a coil around an iron nail, it acts as a temporary magnet. What is this temporary magnet called?
  • a)
    Permanent magnet
  • b)
    Temporary magnet
  • c)
    Electromagnet
  • d)
    Magnetized coil
Correct answer is option 'C'. Can you explain this answer?
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When a wire carrying current is wound into a coil around an iron nail,...
Understanding the Concept of Electromagnets
When a wire carrying an electric current is wound around a ferromagnetic material, such as an iron nail, it creates a magnetic field. This phenomenon is the basis for what we refer to as an electromagnet.
What is an Electromagnet?
- An electromagnet is a type of temporary magnet that is created when electricity flows through a coil of wire.
- The strength of the magnetic field depends on the amount of current flowing through the wire and the number of turns in the coil.
Why is it Temporary?
- Unlike permanent magnets, which retain their magnetism over time, electromagnets only exhibit magnetic properties while the current is flowing.
- When the current is turned off, the magnetic field disappears, and the material loses its magnetism.
Applications of Electromagnets
- Electromagnets are widely used in various applications, including:
- Electric motors: They allow for the conversion of electrical energy into mechanical energy.
- Magnetic locks: Used for security systems.
- Magnetic cranes: Used in recycling yards to lift heavy metallic objects.
Conclusion
In summary, the correct answer to the question is option C: Electromagnet. This temporary magnet is formed when electric current passes through a coil of wire wrapped around an iron core, demonstrating the principles of electromagnetism.
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When a wire carrying current is wound into a coil around an iron nail,...
A coil of wire around an iron core that becomes magnetic when current flows through it is known as an electromagnet.
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Short Q&A:Q1: Why weekly markets are cheaper than permanent shops?Ans : Permanent shops have to incur a lot of expenditure like shop rent, electricity, fees to the government etc., but a weekly market shop owner don’t have to bear these expenses. Permanent shops holder also have to pay wages to their workers but weekly market shop owner have helpers from their family members, and thus they don’t need to hire workers. And are cheaper than permanent shops.Q2: Why Neighbourhood market is preferred by the Indians?Ans : Neighbourhood markets are near our house, one can go there at any day of the week. The buyers and sellers know each other and these shops also provide goods on credits,Q3: Differentiate between shopping complexes and malls.Ans : Markets mostly in urban areas having many shops are called shopping complexes. In many urban areas there are large multi-storeyed air conditioned building with shops on different floors, knows as malls.Q4: Establish relationship between the market and the inequality?Ans : Shop owner in weekly market and in shopping complexes are different people. One is small trader with little money while other can spend lot of money. They also earn unequal amounts. Similarly buyers are also different, there are many who are not able to afford the cheapest goods while buys only branded items from shopping malls. Thus it forms an inequality amongst people.Q5: Differentiate between permanent and temporary shops.Ans : Permanent shops contains goods that are expensive in comparison to goods of temporary shops. Permanent shops store the things they sell in their shops but temporary shops owner store goods to be sold at their home. Long Q & A : Q1: What is a chain of market? Do you think that everyone gains equally in the market?Ans:A series of markets that are connected like links forms chain of market. Products passes from one market to another. Shop owner in weekly market and in shopping complexes are different people. One is small trader with little money while other can spend lot of money. They also earn unequal amounts. Similarly buyers are also different, there are many who are not able to afford the cheapest goods while buys only branded items from shopping malls. Everyone do not get equally in a market. Individual answer. Related: Short and Long Question Answers - Market Around Us?

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When a wire carrying current is wound into a coil around an iron nail, it acts as a temporary magnet. What is this temporary magnet called?a)Permanent magnetb)Temporary magnetc)Electromagnetd)Magnetized coilCorrect answer is option 'C'. Can you explain this answer?
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