Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 626 · 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: a long and a short line is the symbol for a cell. (a) True (b) False
2. 2.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
3. 3.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
4. 4.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a plain rectangle (c) a circle with V inside (d) one tall, one short bar
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) voltmeter (c) resistor (d) switch
6. 6.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) a long and a short line (c) a small empty box (d) a dot where wires meet
7. 7.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) LED (c) wire (d) switch
8. 8.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
9. 9.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
11. 11.Which drawing is the symbol for an LED? (a) a small empty box (b) a line lifted at a gap (c) triangle, bar and arrows (d) two or more cell symbols
12. 12.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a line lifted at a gap (c) one tall, one short bar (d) two equal parallel lines
13. 13.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) voltmeter (c) cell (d) wire
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) battery (c) diode (d) cell
16. 16.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) wire (c) diode (d) voltmeter
18. 18.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a straight line (c) a line lifted at a gap (d) one tall, one short bar
19. 19.Which drawing is the symbol for a cell? (a) a circle with M inside (b) two or more cell symbols (c) a long and a short line (d) a circle with A inside
20. 20.Which drawing is the symbol for a wire? (a) a long and a short line (b) a straight line (c) a line lifted at a gap (d) triangle, bar and arrows
21. 21.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) True (b) False
22. 22.True or false: a small empty box is the symbol for an ammeter. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) cell (c) voltmeter (d) LED
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) switch (c) capacitor (d) wire
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) diode (c) wire (d) cell
26. 26.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) two equal parallel lines (c) a circle with A inside (d) triangle, bar and arrows
27. 27.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a circle with M inside (c) many long-short pairs (d) a circle with A inside
28. 28.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) LED (c) diode (d) battery
29. 29.True or false: one tall, one short bar is the symbol for an LED. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) cell (c) capacitor (d) switch
31. 31.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) two or more cell symbols (c) many long-short pairs (d) triangle against a bar
32. 32.Which drawing is the symbol for a switch? (a) many long-short pairs (b) two equal parallel lines (c) a line lifted at a gap (d) a circle with V inside
33. 33.True or false: a small empty box is the symbol for a battery. (a) True (b) False
34. 34.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
35. 35.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) two equal parallel lines (c) a circle with V inside (d) a small empty box
36. 36.True or false: a circle with M inside is the symbol for an ammeter. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) diode (c) battery (d) motor
38. 38.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
39. 39.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a circle with a cross (c) a plain rectangle (d) triangle, bar and arrows
40. 40.True or false: a circle with V inside is the symbol for a motor. (a) True (b) False

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