Voltage and Current Questions and Answers
Understanding Voltage and Current is fundamental to all branches of electronics. These reasoning questions and answers help candidates analyze how electrical quantities interact within circuits. Topics include Ohm’s Law, Kirchhoff’s rules, resistive circuits, and power calculations. Practicing electronics aptitude questions with explanations enhances problem-solving ability and prepares you for GATE, DRDO, ISRO, and PSU technical exams. By working on voltage and current questions with answers, aspirants can master theoretical principles and practical applications, ensuring a strong foundation in electronic circuit analysis and electrical measurements.
Voltage and Current
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39 questions
31. An element is a substance that is:
- varied throughout the entire piece
- used only in electronics
- electrically charged
- found only in its pure form
32. Current is:
- the presence of a positive charge
- the abundance of electrons
- the movement of electrons
- the repulsion of electrons
33. What do you call a diagram that shows the electrical connections of a circuit's components?
- A schematic diagram
- A pictorial diagram
- A block diagram
- An electrical diagram
34. A short circuit will have:
- a small current flow
- a large current flow
- no current flow
- some current flow
35. The basic difference between a fuse and a circuit breaker is
- a fuse is slower
- a fuse is reusable
- a circuit breaker is reusable
- a circuit breaker is more reliable
37. A secondary cell generates dc via chemical activity; a primary cell generates dc:
- electrically
- thermally
- optically
- chemically
38. Which of the following statements is true?
- Unlike charges repel and like charges attract.
- Like charges repel and unlike charges attract.
- Unlike charges attract and like charges attract.
- Like charges repel and unlike charges repel.
39. if an electrical system is compared to a fluid system, the electrical current corresponds to the:
- pressure
- pump
- water wheel
- water flow