Several resistors are connected in parallel the resistance of their equivalent resistor will:
Correct answer: B. Decrease
- A. Increase
- B. Decrease
- C. Not change
- D. None of these
Explanation
In a parallel circuit, the net resistance decreases as more components are added, because there are more paths for the current to pass through.
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About Resistance and Resistivity
Resistance measures opposition to current in a conductor and follows R = V/I for an ohmic conductor, while resistivity is an intrinsic property of the material. Questions use R = ρL/A, examine effects of length, cross-sectional area and temperature, and distinguish resistance, resistivity, conductance and conductivity.
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