Choose the correct option regarding Electric Iron.

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SSC JE Electrical 06 Jun 2024 Shift 2 Official Paper - 1
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  1. Magnesium oxide powder is used for insulation purposes in heating elements.
  2. Halogen bulb is used in electric iron.
  3. The heating element is made of chromium.
  4. The Thermostat used in electric irons uses a metal strip.

Answer (Detailed Solution Below)

Option 1 : Magnesium oxide powder is used for insulation purposes in heating elements.
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Detailed Solution

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Electric Iron

An electric iron, also known as a clothes iron or steam iron, is a household appliance used to remove wrinkles from fabric by applying heat and, in some models, steam.

Key Components:

  • Insulation: Magnesium oxide powder is widely used in electric irons for its excellent thermal and electrical insulation properties, ensuring efficient heat distribution and enhanced safety. Its durability, cost-effectiveness, and chemical stability make it an ideal choice for heating element insulation in various electrical appliances.
  • Heating Element: The core component that heats up when electricity passes through it. This element is usually made of a metal conductor (like nichrome) that generates heat.
  • Thermostat: A temperature control device that regulates the heat of the soleplate. Users can adjust the temperature based on the fabric type being ironed (e.g., cotton, wool, silk).
  • Water Reservoir (for steam irons): A tank that holds water to produce steam. This feature helps in relaxing the fibers of the fabric, making it easier to remove wrinkles.
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