Electronics Worksheet: Circuit Symbols

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

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