Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 843 · 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 long and a short line? (a) diode (b) switch (c) cell (d) wire
2. 2.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
3. 3.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) switch (c) LED (d) bulb
4. 4.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
5. 5.True or false: a circle with an X in it is the symbol for a junction. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) cell (c) ammeter (d) diode
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) switch (c) cell (d) voltmeter
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
9. 9.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) ammeter (c) bulb (d) voltmeter
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) voltmeter (c) switch (d) wire
12. 12.Which drawing is the symbol for a wire? (a) a straight line (b) triangle, bar and arrows (c) two or more cell symbols (d) a circle with a cross
13. 13.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) motor (c) voltmeter (d) cell
14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) motor (c) diode (d) battery
15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) battery (c) resistor (d) cell
16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) capacitor (c) bulb (d) junction
17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
18. 18.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) two or more cell symbols (c) a circle with M inside (d) a circle with a cross
19. 19.True or false: a circle with a cross is the symbol for a wire. (a) True (b) False
20. 20.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
21. 21.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a circle with V inside (c) a plain rectangle (d) a line lifted at a gap
22. 22.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) cell (c) bulb (d) resistor
24. 24.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a dot where wires meet (c) triangle against a bar (d) a long and a short line
25. 25.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) a circle with A inside (c) a line lifted at a gap (d) a circle with M inside
26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) capacitor (c) battery (d) voltmeter
27. 27.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
28. 28.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
29. 29.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
30. 30.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a circle with a cross (c) a line lifted at a gap (d) a circle with V inside
31. 31.True or false: two equal parallel lines is the symbol for a diode. (a) True (b) False
32. 32.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
33. 33.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
34. 34.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) motor (c) junction (d) switch
36. 36.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
37. 37.True or false: many long-short pairs is the symbol for a voltmeter. (a) False (b) True
38. 38.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with an X in it (c) triangle, bar and arrows (d) a small empty box
39. 39.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
40. 40.True or false: a plain rectangle is the symbol for a capacitor. (a) True (b) False

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