What is a brownout in the context of electrical power supply? 

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  1. A drop in the electrical power supply causing a drop in voltage 
  2. Protection from power surges using surge protectors and circuit breakers 
  3. A complete loss of power to a geographic area 
  4. A phenomenon that affects high power installations, leading to partial electric discharges 

Answer (Detailed Solution Below)

Option 1 : A drop in the electrical power supply causing a drop in voltage 
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Detailed Solution

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A brownout in the context of electrical power supply is: A drop in the electrical power supply causing a drop in voltage

  • A brownout refers to a temporary and intentional drop in voltage in an electrical power supply system.
  • It is often done by the utility company to prevent a complete blackout during periods of high demand or stress on the power grid.
  • In a brownout, the voltage level is reduced, which can affect the performance of electrical devices without completely cutting off power.
  • Brownouts are typically used as a preventive measure to balance the power demand and supply, avoiding more severe consequences like blackouts.
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