Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 954 · 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: a dot where wires meet is the symbol for a junction. (a) True (b) False
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) wire (d) diode
3. 3.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
4. 4.Which drawing is the symbol for a motor? (a) a long and a short line (b) a circle with M inside (c) triangle, bar and arrows (d) a straight line
5. 5.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) triangle, bar and arrows (c) triangle against a bar (d) a long and a short line
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
7. 7.True or false: a circle with V inside is the symbol for a diode. (a) True (b) False
8. 8.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a straight line (c) a circle with A inside (d) a dot where wires meet
9. 9.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) two or more cell symbols (c) a plain rectangle (d) a straight line
10. 10.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) diode (c) bulb (d) resistor
12. 12.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
14. 14.Which drawing is the symbol for a bulb? (a) a straight line (b) triangle, bar and arrows (c) a circle with V inside (d) a circle with a cross
15. 15.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
16. 16.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) two or more cell symbols (c) a line lifted at a gap (d) triangle against a bar
17. 17.Which drawing is the symbol for a switch? (a) a straight line (b) a line lifted at a gap (c) a small empty box (d) triangle, bar and arrows
18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) resistor (c) junction (d) motor
19. 19.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) a circle with V inside (c) two equal parallel lines (d) triangle against a bar
20. 20.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) motor (c) bulb (d) LED
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) junction (c) cell (d) battery
22. 22.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) bulb (c) cell (d) diode
23. 23.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) capacitor (c) switch (d) motor
25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) resistor (c) LED (d) bulb
26. 26.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
27. 27.True or false: a circle with a cross is the symbol for a motor. (a) True (b) False
28. 28.Which drawing is the symbol for a wire? (a) a circle with a cross (b) triangle, bar and arrows (c) a straight line (d) a circle with V inside
29. 29.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
30. 30.True or false: triangle, bar and arrows is the symbol for a resistor. (a) False (b) True
31. 31.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) bulb (c) ammeter (d) cell
33. 33.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
34. 34.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
35. 35.True or false: two or more cell symbols is the symbol for a cell. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) cell (c) LED (d) capacitor
37. 37.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) battery (c) resistor (d) wire
38. 38.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) triangle, bar and arrows (c) a circle with an X in it (d) a line lifted at a gap
39. 39.True or false: a circle with an X in it is the symbol for a voltmeter. (a) False (b) True
40. 40.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False

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