Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 202 · 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 one tall, one short bar? (a) cell (b) battery (c) bulb (d) junction
2. 2.True or false: a dot where wires meet is the symbol for a voltmeter. (a) False (b) True
3. 3.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) a circle with a cross (c) a dot where wires meet (d) two equal parallel lines
4. 4.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
5. 5.Which drawing is the symbol for a diode? (a) a line lifted at a gap (b) triangle against a bar (c) two or more cell symbols (d) two equal parallel lines
6. 6.Which drawing is the symbol for a battery? (a) a long and a short line (b) two or more cell symbols (c) a plain rectangle (d) two equal parallel lines
7. 7.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a circle with V inside (c) a small empty box (d) a circle with M inside
8. 8.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a dot where wires meet (c) triangle, bar and arrows (d) triangle against a bar
9. 9.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) diode (c) voltmeter (d) motor
10. 10.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
12. 12.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with M inside (c) a circle with A inside (d) a circle with V inside
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
14. 14.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) a circle with M inside (c) a dot where wires meet (d) one tall, one short bar
15. 15.True or false: a straight line is the symbol for a battery. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) battery (c) LED (d) resistor
17. 17.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) motor (c) cell (d) resistor
19. 19.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
20. 20.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with A inside (c) a plain rectangle (d) a line lifted at a gap
21. 21.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
22. 22.Which drawing is the symbol for a motor? (a) a circle with M inside (b) two or more cell symbols (c) one tall, one short bar (d) a circle with A inside
23. 23.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) voltmeter (c) motor (d) switch
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) switch (c) ammeter (d) voltmeter
26. 26.True or false: a circle with a cross is the symbol for a cell. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) switch (c) voltmeter (d) bulb
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) LED (c) ammeter (d) bulb
29. 29.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a circle with an X in it (c) triangle against a bar (d) triangle, bar and arrows
30. 30.Which drawing is the symbol for an LED? (a) a plain rectangle (b) one tall, one short bar (c) triangle against a bar (d) triangle, bar and arrows
31. 31.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
32. 32.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
33. 33.Which drawing is the symbol for a switch? (a) a long and a short line (b) a line lifted at a gap (c) many long-short pairs (d) triangle against a bar
34. 34.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) junction (c) capacitor (d) diode
35. 35.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
36. 36.True or false: a long and a short line is the symbol for a capacitor. (a) False (b) True
37. 37.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
38. 38.True or false: a small empty box is the symbol for a wire. (a) True (b) False
39. 39.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
40. 40.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True

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