Technology MCQs

✅ The correct answer is option A.

✅ The correct answer is option A.

✅ The correct answer is option C.
CDs reproduce 44,100 samples per second. Which has a maximum frequency reproduction of 22,050 Hz, or just a hair past the upper limit of human hearing. In this way CDs can theoretically reproduce any frequency in the human hearing range.

✅ The correct answer is option B.
This was one of the most common viruses unleashed in 1988.

✅ The correct answer is option A.
The terminals of FETs are called gate, drain and source. You might be more familiar with bipolar junction transistors (BJTs), which have terminals called base, collector and emitter. FETs were conceptualized first, but BJTs were easier to produce and so developed sooner.

✅ The correct answer is option C.

✅ The correct answer is option A.

✅ The correct answer is option B.

✅ The correct answer is option B.
Useful in tuning and filtering circuits, it blocks DC while passing AC. How much charge a capacitor can store is its capacitance, measured in farads.

✅ The correct answer is option D.
The term EMF, or Electromotive Force, its use now in decline, is attributed to Italian physicist Alessandro Volta (1745-1827). Today we generally use the term “voltage” – can you guess why we call it that?