Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 778 · 40 questions

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

1. 1.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) capacitor (c) battery (d) resistor
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) resistor (c) bulb (d) battery
4. 4.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) bulb (c) resistor (d) ammeter
6. 6.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) two or more cell symbols (c) triangle against a bar (d) one tall, one short bar
7. 7.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
8. 8.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) triangle against a bar (c) a circle with V inside (d) a straight line
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
10. 10.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) a straight line (c) a circle with A inside (d) a dot where wires meet
11. 11.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
12. 12.Which drawing is the symbol for a motor? (a) a circle with A inside (b) a line lifted at a gap (c) many long-short pairs (d) a circle with M inside
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) junction (c) ammeter (d) cell
14. 14.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) battery (c) LED (d) bulb
16. 16.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) a circle with a cross (c) a plain rectangle (d) a dot where wires meet
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) resistor (c) battery (d) capacitor
18. 18.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a straight line (c) a circle with a cross (d) a circle with V inside
19. 19.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) cell (c) junction (d) resistor
20. 20.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
21. 21.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a circle with V inside (c) a long and a short line (d) triangle against a bar
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) LED (c) ammeter (d) junction
23. 23.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) two or more cell symbols (c) a dot where wires meet (d) a circle with an X in it
24. 24.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a dot where wires meet (c) a circle with a cross (d) one tall, one short bar
25. 25.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) cell (c) wire (d) battery
26. 26.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
27. 27.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
28. 28.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
29. 29.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
30. 30.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
31. 31.True or false: many long-short pairs is the symbol for a wire. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) resistor (c) junction (d) bulb
33. 33.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) diode (c) switch (d) resistor
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) capacitor (c) LED (d) cell
35. 35.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) a line lifted at a gap (c) a circle with a cross (d) many long-short pairs
36. 36.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
37. 37.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
38. 38.True or false: a dot where wires meet is the symbol for a wire. (a) False (b) True
39. 39.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a straight line (c) many long-short pairs (d) triangle, bar and arrows
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) LED (c) motor (d) capacitor

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