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BITSAT 2010
Exam
BITSAT
Year
2010
Subject
Physics
Chapter
Current Electricity

BITSAT 2010 · Physics · Current Electricity

Which of the following quantities do not change when a resistor...

Which of the following quantities do not change when a resistor connected to a battery is heated due to the current?

Options

  1. ADrift speed
  2. BResistivity
  3. CResistance
  4. DNumber of free electrons

Correct answer

D. Number of free electrons

Step-by-step solution

Only number of free electrons is constant, other factors are temperature dependent.
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