Question about power dissipating

Discussion in 'General Electronics Chat' started by fallen angel, Mar 12, 2012.

  1. fallen angel

    Thread Starter New Member

    Mar 12, 2012
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    0
    please can anyone tell me... why the larger resistor in size can
    safely dissipate without suffering damage???? thanx in advance for all who can help :)
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,435
    3,360
    That is a good question.

    You wouldn't use a small nail for a big job. Nor would you hit a small nail with a big hammer or a big nail with a small hammer.

    My guess is that a physically bigger resistor can withstand more physical stress.

    The other answer is the temperature rise. A larger resistor has more thermal capacity and hence the temperature rise would be lower.
     
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