state 10 uses of electromagnet.

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Name two electromagnetic waves of wavelength smaller than that of violet light. State one use of each.

(a) What is an electromagnet ? Describe the construction and working of a electromagnet with the help of a labelled diagram.

(b) Explain why an electromagnet is called a temporary magnet.

(d) State the factors on which the strength of an electromagnet depends. How does it depend on these factors ?

(e) Write some of the important uses of electromagnets.

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