MCQ practice · SSC Physics Board questions · Chapter 1: Physical Quantities and Their Measurements
One picofarad equals how many farads?
Think it through first, then pick an option.
- a 10⁻¹⁵
- b 10⁻¹²
- c 10¹²
- d 10¹⁵
Answer and explanation
Correct answer: b 10⁻¹²
Pico (p) = 10⁻¹², so 1 pF = 10⁻¹² F.
Why the other options are wrong
- a 10⁻¹⁵: 10⁻¹⁵ is femto (f), a different prefix; pico is 10⁻¹².
- c 10¹²: 10¹² is tera (T), a prefix on the large side; pico is on the small side, 10⁻¹².
- d 10¹⁵: 10¹⁵ is peta (P), a prefix on the large side; pico is on the small side, 10⁻¹².
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