Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 614 · 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.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
2. 2.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a plain rectangle (c) triangle against a bar (d) a dot where wires meet
3. 3.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
4. 4.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) cell (c) wire (d) switch
6. 6.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) one tall, one short bar (c) a circle with an X in it (d) a small empty box
7. 7.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) wire (c) motor (d) battery
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) battery (d) resistor
10. 10.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
11. 11.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a circle with an X in it (c) triangle, bar and arrows (d) two or more cell symbols
12. 12.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) two equal parallel lines (c) a plain rectangle (d) a line lifted at a gap
13. 13.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) two or more cell symbols (c) a circle with V inside (d) triangle, bar and arrows
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
16. 16.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
17. 17.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) a circle with A inside (c) triangle against a bar (d) a circle with a cross
18. 18.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) switch (c) wire (d) cell
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) voltmeter (c) diode (d) bulb
21. 21.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) cell (c) switch (d) junction
22. 22.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
23. 23.True or false: a plain rectangle is the symbol for a wire. (a) True (b) False
24. 24.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
25. 25.True or false: a circle with V inside is the symbol for an ammeter. (a) True (b) False
26. 26.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a straight line (c) a line lifted at a gap (d) a circle with a cross
27. 27.True or false: a circle with an X in it is the symbol for a diode. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) cell (c) resistor (d) ammeter
29. 29.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
30. 30.True or false: a straight line is the symbol for a wire. (a) False (b) True
31. 31.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) two equal parallel lines (c) a circle with M inside (d) one tall, one short bar
32. 32.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
33. 33.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
34. 34.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
35. 35.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a line lifted at a gap (c) a circle with M inside (d) many long-short pairs
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) voltmeter (c) ammeter (d) capacitor
37. 37.Which drawing is the symbol for a motor? (a) two equal parallel lines (b) a dot where wires meet (c) a circle with M inside (d) a long and a short line
38. 38.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) diode (c) LED (d) switch
40. 40.Which drawing is the symbol for an LED? (a) a circle with V inside (b) a circle with a cross (c) triangle, bar and arrows (d) one tall, one short bar

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