MCQ practice · SSC Physics Board questions · Chapter 11: Current Electricity
How many kinds of resistor are used in circuits?
Think it through first, then pick an option.
- a 2
- b 3
- c 4
- d 5
Answer and explanation
Correct answer: a 2
The book has two kinds of resistor: the fixed resistance and the variable resistance (rheostat).
Why the other options are wrong
- b 3: Not three kinds; a rheostat has three terminals, but the kinds of resistor are two.
- c 4: Not four kinds; the book has only the fixed and the variable resistance.
- d 5: Not five kinds; the book describes resistors as of two types, fixed and variable.
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