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Current Electricity — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsCurrent Electricity1 Mark
MCQ
Which resistor is difficult to make of having a value less than about $2 \ Ohms?$
  • A
    Iron Resistor
  • ✓
    Carbon Resistor
  • C
    Wire wound Resistor
  • D
    Both $b$ and $c$
✓

Answer

Correct option: B.
Carbon Resistor

Carbon resistor is difficult to make of having a value less than about $20 \ Ohms$ because they have ability to withstand high energy pulses, when current flow through the carbon composition body conducts the energy. So carbon resistor can be made with a higher resistance.

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