Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 583 · 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: one tall, one short bar is the symbol for a cell. (a) False (b) True
2. 2.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) False (b) True
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) voltmeter (c) wire (d) battery
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) voltmeter (c) motor (d) bulb
6. 6.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) bulb (c) battery (d) ammeter
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) diode (c) LED (d) motor
9. 9.Which drawing is the symbol for a resistor? (a) a straight line (b) a plain rectangle (c) a line lifted at a gap (d) two equal parallel lines
10. 10.Which drawing is the symbol for a motor? (a) many long-short pairs (b) triangle against a bar (c) a line lifted at a gap (d) a circle with M inside
11. 11.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) bulb (c) cell (d) LED
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) bulb (c) diode (d) resistor
14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) motor (c) bulb (d) capacitor
15. 15.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
16. 16.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) one tall, one short bar (c) two equal parallel lines (d) a dot where wires meet
17. 17.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False
18. 18.True or false: one tall, one short bar is the symbol for an LED. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) voltmeter (c) wire (d) diode
20. 20.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
21. 21.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
22. 22.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
23. 23.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
24. 24.Which drawing is the symbol for a diode? (a) a circle with a cross (b) one tall, one short bar (c) triangle against a bar (d) a straight line
25. 25.Which drawing is the symbol for a junction? (a) a small empty box (b) triangle, bar and arrows (c) triangle against a bar (d) a dot where wires meet
26. 26.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a small empty box (c) many long-short pairs (d) a long and a short line
27. 27.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) resistor (c) bulb (d) ammeter
28. 28.True or false: a small empty box is the symbol for a cell. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) bulb (c) ammeter (d) capacitor
30. 30.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) wire (c) junction (d) LED
31. 31.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) bulb (c) cell (d) switch
32. 32.True or false: one tall, one short bar is the symbol for a bulb. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) ammeter (c) bulb (d) resistor
34. 34.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) diode (c) switch (d) junction
35. 35.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
36. 36.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a straight line (c) one tall, one short bar (d) a circle with an X in it
37. 37.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with an X in it (c) two equal parallel lines (d) a circle with a cross
38. 38.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) battery (c) junction (d) wire
39. 39.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) resistor (c) diode (d) motor
40. 40.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True

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