Circuit Fundamentals Assessment
A concise set of questions covering core concepts in electrical engineering for enthusiasts.
Quiz Questions
Answer all questions below and test your knowledge.
- 1
What unit measures electrical resistance?
- 2
Calculate the total resistance of a series circuit containing 2Ω, 4Ω, and 6Ω resistors.
- 3
Which principle asserts that the sum of currents entering a node equals the sum leaving it?
- 4
A transformer reduces 240 V to 30 V. If the primary draws 2 A, what is the ideal secondary current?
- 5
Which semiconductor component is chiefly used for voltage regulation?
- 6
In a balanced three‑phase system, line‑to‑line voltage equals √3 times line‑to‑neutral. If the latter is 120 V, find the former.
- 7
Identify the safety device that automatically opens a circuit when current exceeds a preset limit.
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