Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 243 · 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 motor? (a) a plain rectangle (b) a circle with a cross (c) a long and a short line (d) a circle with M inside
2. 2.True or false: a small empty box is the symbol for a diode. (a) True (b) False
3. 3.True or false: two or more cell symbols is the symbol for an LED. (a) False (b) True
4. 4.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) many long-short pairs (c) a long and a short line (d) a circle with a cross
5. 5.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) voltmeter (c) LED (d) cell
6. 6.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) wire (c) LED (d) motor
7. 7.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) a circle with V inside (c) a circle with A inside (d) one tall, one short bar
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) cell (c) switch (d) voltmeter
9. 9.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) battery (c) diode (d) resistor
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
11. 11.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) diode (c) capacitor (d) bulb
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) resistor (c) bulb (d) ammeter
14. 14.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with a cross (c) one tall, one short bar (d) a circle with an X in it
15. 15.True or false: two equal parallel lines is the symbol for a cell. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) bulb (c) diode (d) capacitor
17. 17.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) junction (c) wire (d) diode
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) battery (c) resistor (d) switch
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) LED (c) diode (d) resistor
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) junction (c) cell (d) motor
21. 21.Which drawing is the symbol for a junction? (a) a plain rectangle (b) many long-short pairs (c) a circle with an X in it (d) a dot where wires meet
22. 22.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
23. 23.True or false: a straight line is the symbol for a cell. (a) False (b) True
24. 24.True or false: a dot where wires meet is the symbol for an LED. (a) True (b) False
25. 25.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) cell (c) switch (d) battery
27. 27.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) two equal parallel lines (c) a circle with A inside (d) many long-short pairs
28. 28.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with M inside (c) a circle with a cross (d) a long and a short line
29. 29.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) two equal parallel lines (c) one tall, one short bar (d) a plain rectangle
30. 30.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
31. 31.True or false: a circle with an X in it is the symbol for a junction. (a) True (b) False
32. 32.Which drawing is the symbol for a wire? (a) a long and a short line (b) triangle, bar and arrows (c) a straight line (d) two equal parallel lines
33. 33.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) junction (c) voltmeter (d) switch
35. 35.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
36. 36.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
37. 37.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
38. 38.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
39. 39.Which drawing is the symbol for a switch? (a) a straight line (b) a circle with M inside (c) a small empty box (d) a line lifted at a gap
40. 40.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) ammeter (c) battery (d) motor

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