Ms. Nita Chander consulted a specialist when she came to know that her son is not able to hear properly.
Ms. Nita Chander consulted a specialist when she came to know that her son is not able to hear properly. The specialist recommends the hearing aid for her son. He told that hearing aid has electromagnet which is fitted in the loudspeakers of the device.
(i) iAlhat two values does Ms. Nita exhibit towards her son and students? Mention any two.
(ii) What is an electromagnet? In what way its hysteresis curve is different from that used for permanent magnets?
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(i) caring attitude, sensitive towards society,and concern for others.
(ii) it is a temporary magnet made by magnetising a soft iron core by passing electric current.
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