Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 999 · 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, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
2. 2.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) battery (c) LED (d) junction
3. 3.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) cell (c) capacitor (d) resistor
4. 4.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a circle with M inside (c) a circle with V inside (d) one tall, one short bar
5. 5.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) LED (c) cell (d) switch
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) ammeter (c) cell (d) battery
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) cell (c) ammeter (d) bulb
8. 8.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
9. 9.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
10. 10.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
12. 12.True or false: a plain rectangle is the symbol for a motor. (a) True (b) False
13. 13.Which drawing is the symbol for a diode? (a) a circle with a cross (b) a circle with A inside (c) two or more cell symbols (d) triangle against a bar
14. 14.Which drawing is the symbol for an ammeter? (a) a straight line (b) triangle against a bar (c) a circle with A inside (d) one tall, one short bar
15. 15.Which drawing is the symbol for a junction? (a) a plain rectangle (b) a dot where wires meet (c) a circle with M inside (d) a circle with an X in it
16. 16.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
17. 17.True or false: a dot where wires meet is the symbol for a motor. (a) False (b) True
18. 18.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True
19. 19.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
20. 20.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
21. 21.True or false: a circle with a cross is the symbol for a capacitor. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) wire (c) cell (d) LED
23. 23.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) wire (c) cell (d) capacitor
24. 24.True or false: a straight line is the symbol for a switch. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) capacitor (c) motor (d) resistor
26. 26.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) wire (c) diode (d) capacitor
27. 27.True or false: a circle with A inside is the symbol for a capacitor. (a) False (b) True
28. 28.Which drawing is the symbol for a wire? (a) a long and a short line (b) a straight line (c) triangle, bar and arrows (d) a circle with V inside
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) battery (c) ammeter (d) capacitor
30. 30.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
31. 31.Which drawing is the symbol for a switch? (a) a straight line (b) a circle with a cross (c) triangle, bar and arrows (d) a line lifted at a gap
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) bulb (c) wire (d) junction
33. 33.Which drawing is the symbol for an LED? (a) triangle against a bar (b) two or more cell symbols (c) a plain rectangle (d) triangle, bar and arrows
34. 34.True or false: a straight line is the symbol for a capacitor. (a) True (b) False
35. 35.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) a line lifted at a gap (c) a plain rectangle (d) two or more cell symbols
36. 36.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a small empty box (c) a circle with an X in it (d) one tall, one short bar
37. 37.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) junction (c) diode (d) resistor
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 A inside is the symbol for an ammeter. (a) False (b) True

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