3. The resistance of a 25 ohms resistorincreases by 10 percent when its operating temperature increases from 15 C to 50•C.Calculate the mean temperatue rise of the resistor from an ambient temperature of 20C when its resistanceis 30 ohms and the temperature coefficient remains constant.

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Type of Magnetic Material

Every material has a unique composition that defines its magnetic behavior. Some materials get attracted towards a magnet and are called magnetic materials. Based on the magnetic properties held by each material, they are classified into different types.