Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 817 · 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.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a plain rectangle (c) a circle with V inside (d) a circle with an X in it
2. 2.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
4. 4.True or false: a small empty box is the symbol for a wire. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) ammeter (c) LED (d) cell
6. 6.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
7. 7.True or false: a circle with V inside is the symbol for a capacitor. (a) True (b) False
8. 8.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a circle with M inside (c) two equal parallel lines (d) triangle, bar and arrows
9. 9.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) bulb (c) junction (d) battery
11. 11.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
13. 13.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) battery (c) cell (d) ammeter
14. 14.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) two equal parallel lines (c) a small empty box (d) a circle with a cross
15. 15.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) switch (c) ammeter (d) capacitor
16. 16.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
17. 17.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) two or more cell symbols (c) a dot where wires meet (d) a line lifted at a gap
18. 18.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) battery (c) LED (d) ammeter
19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) resistor (c) voltmeter (d) switch
20. 20.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) diode (d) wire
21. 21.True or false: a dot where wires meet is the symbol for a resistor. (a) False (b) True
22. 22.Which drawing is the symbol for a capacitor? (a) a straight line (b) two or more cell symbols (c) triangle against a bar (d) two equal parallel lines
23. 23.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with V inside (c) a straight line (d) a plain rectangle
24. 24.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) voltmeter (c) resistor (d) switch
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) switch (c) motor (d) diode
26. 26.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) battery (c) switch (d) ammeter
28. 28.Which drawing is the symbol for a wire? (a) many long-short pairs (b) one tall, one short bar (c) a circle with M inside (d) a straight line
29. 29.True or false: a circle with an X in it is the symbol for an LED. (a) False (b) True
30. 30.True or false: a small empty box is the symbol for a cell. (a) False (b) True
31. 31.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a circle with V inside (c) a circle with M inside (d) a circle with a cross
32. 32.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
33. 33.True or false: a plain rectangle is the symbol for a bulb. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) LED (c) resistor (d) voltmeter
35. 35.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) switch (c) capacitor (d) junction
36. 36.True or false: a dot where wires meet is the symbol for a wire. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) battery (c) diode (d) motor
38. 38.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
39. 39.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
40. 40.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False

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