Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 213 · 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 triangle, bar and arrows? (a) junction (b) battery (c) LED (d) ammeter
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
3. 3.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) many long-short pairs (c) a circle with V inside (d) a plain rectangle
4. 4.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
5. 5.Which drawing is the symbol for a battery? (a) a straight line (b) many long-short pairs (c) a circle with V inside (d) two equal parallel lines
6. 6.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) triangle, bar and arrows (c) a circle with a cross (d) a plain rectangle
7. 7.True or false: a circle with an X in it is the symbol for a diode. (a) True (b) False
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
9. 9.True or false: triangle, bar and arrows is the symbol for a switch. (a) False (b) True
10. 10.True or false: a plain rectangle is the symbol for a capacitor. (a) True (b) False
11. 11.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
12. 12.True or false: two equal parallel lines is the symbol for an LED. (a) False (b) True
13. 13.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) diode (c) bulb (d) resistor
15. 15.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) triangle against a bar (c) a circle with V inside (d) a circle with A inside
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) resistor (c) ammeter (d) battery
17. 17.Which drawing is the symbol for a diode? (a) a straight line (b) two or more cell symbols (c) a line lifted at a gap (d) triangle against a bar
18. 18.✏️ 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
19. 19.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
20. 20.Which drawing is the symbol for a junction? (a) a circle with M inside (b) two equal parallel lines (c) a dot where wires meet (d) a long and a short line
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) junction (c) capacitor (d) battery
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) junction (c) bulb (d) cell
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) motor (c) LED (d) capacitor
24. 24.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) battery (c) junction (d) resistor
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) capacitor (c) voltmeter (d) motor
26. 26.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) LED (c) battery (d) diode
27. 27.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) cell (c) battery (d) bulb
28. 28.True or false: a circle with an X in it is the symbol for a resistor. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) bulb (c) ammeter (d) voltmeter
30. 30.True or false: a circle with A inside is the symbol for a diode. (a) True (b) False
31. 31.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
32. 32.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
33. 33.Which drawing is the symbol for a switch? (a) a long and a short line (b) a dot where wires meet (c) triangle, bar and arrows (d) a line lifted at a gap
34. 34.True or false: a small empty box is the symbol for a cell. (a) True (b) False
35. 35.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
36. 36.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) one tall, one short bar (c) a circle with an X in it (d) a plain rectangle
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) switch (c) motor (d) bulb
38. 38.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
39. 39.Which drawing is the symbol for a cell? (a) a circle with M inside (b) many long-short pairs (c) a long and a short line (d) two or more cell symbols
40. 40.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) triangle, bar and arrows (c) a circle with V inside (d) one tall, one short bar

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