Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 50 · 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) True (b) False
2. 2.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a straight line (c) two equal parallel lines (d) one tall, one short bar
3. 3.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) voltmeter (c) junction (d) switch
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
5. 5.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a dot where wires meet (c) a circle with M inside (d) a circle with an X in it
6. 6.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
7. 7.True or false: a circle with M inside is the symbol for a wire. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) ammeter (c) resistor (d) capacitor
9. 9.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) junction (c) voltmeter (d) LED
10. 10.True or false: triangle against a bar is the symbol for a capacitor. (a) False (b) True
11. 11.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) bulb (c) switch (d) motor
14. 14.✏️ 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
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) motor (c) resistor (d) battery
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) bulb (c) voltmeter (d) diode
17. 17.True or false: a line lifted at a gap is the symbol for a cell. (a) False (b) True
18. 18.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with V inside (c) a circle with M inside (d) one tall, one short bar
19. 19.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a line lifted at a gap (c) a long and a short line (d) a circle with an X in it
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) ammeter (c) wire (d) LED
21. 21.True or false: a straight line is the symbol for a wire. (a) False (b) True
22. 22.Which drawing is the symbol for a capacitor? (a) a small empty box (b) triangle, bar and arrows (c) two equal parallel lines (d) triangle against a bar
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) junction (c) voltmeter (d) motor
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) motor (c) voltmeter (d) bulb
25. 25.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) battery (c) diode (d) motor
27. 27.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
28. 28.True or false: two equal parallel lines is the symbol for a resistor. (a) True (b) False
29. 29.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) triangle, bar and arrows (c) a circle with V inside (d) a circle with a cross
30. 30.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) one tall, one short bar (c) a small empty box (d) many long-short pairs
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) ammeter (c) capacitor (d) bulb
32. 32.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
33. 33.True or false: a plain rectangle is the symbol for a switch. (a) False (b) True
34. 34.True or false: a circle with V inside is the symbol for a wire. (a) True (b) False
35. 35.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
36. 36.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a circle with M inside (c) a circle with a cross (d) a circle with V inside
37. 37.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) switch (c) cell (d) resistor
38. 38.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a plain rectangle (c) a line lifted at a gap (d) a long and a short line
39. 39.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) motor (c) resistor (d) diode
40. 40.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) two equal parallel lines (c) a circle with M inside (d) a long and a short line

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