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
11. If 40 C of charge flow past a point in 20 s, what is the current?
- 2 A
- 0.5 A
- 20 A
- 40 A
12. Batteries differ from fuel cells in that
- a battery is a closed system
- a battery uses hydrogen and oxygen to create electricity
- a battery uses a polymer electrolyte membrane
- none of the above
13. The removal of a non-neutral subatomic particle converts the atom into a:
- charged ion
- nucleus
- heavier element
- compound
15. In which states may matter may be found?
- solid, liquid, or mineral
- solid, gas, or liquid
- mineral, gas, or liquid
- plastic, solid, or gas
16. Material that consists of a mixture of elements is considered to be:
- an element
- an ion
- a compound
- a molecule
18. When considering conventional current versus electron current flow:
- electron current flow came first
- protons move in conventional current flow
- conventional current flow came first
- the direction of current is the same in both methods
19. Which unit of charge contains 6.25 × 1018 electrons?
- An ampere
- A coulomb
- A volt
- A joule
20. A switch is a device that:
- short circuits complex circuits
- holds a fuse
- has double poles
- opens or completes a current path