(A) An electromagnet is used in cranes to lift heavy loads like cars in junkyards. This is because an electromagnet can be turned on and off by contro

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(A) An electromagnet is used in cranes to lift heavy loads like cars in junkyards. This is because an electromagnet can be turned on and off by controlling the electric current. When the current is switched on,the crane becomes magnetic and picks up the metal object. When the current is switched off,the magnetic field disappears,allowing the load to be released easily.

Class 10 Science Magnetic Effects of Electric Current Mix Examples - Magnetic Effects of Electric Current

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Which type of magnet is used in a crane to lift cars?

A
Electromagnet
B
Bar magnet
C
Needle magnet
D
Natural magnet

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Magnetic Effects of Electric Current

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Mix Examples - Magnetic Effects of Electric Current

Traditionally,which coloured insulation on wire is used for earthing?

Easy

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Draw a labelled circuit diagram of a simple electric motor and explain its working. In what way are these simple electric motors different from commercial motors?

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The magnitude of an $AC$ voltage used in other countries like America $(USA)$ is $.........$ and its frequency is $.......$.

Easy

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You are given two identical-looking iron bars,out of which one of them is a magnet. Just using these two bars,how will you identify which one is a magnet?

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Why does a magnetic needle deflect when brought close to a current carrying conductor? Explain the rule to find the direction of force on a current carrying conductor.

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Which type of magnet is used in a crane to lift cars?

Similar Questions

Traditionally,which coloured insulation on wire is used for earthing?

Draw a labelled circuit diagram of a simple electric motor and explain its working. In what way are these simple electric motors different from commercial motors?

The magnitude of an $AC$ voltage used in other countries like America $(USA)$ is $.........$ and its frequency is $.......$.

You are given two identical-looking iron bars,out of which one of them is a magnet. Just using these two bars,how will you identify which one is a magnet?

Why does a magnetic needle deflect when brought close to a current carrying conductor? Explain the rule to find the direction of force on a current carrying conductor.

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