Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 438 · 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: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
2. 2.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
4. 4.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a small empty box (c) a dot where wires meet (d) a straight line
5. 5.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) wire (c) diode (d) switch
6. 6.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) ammeter (c) battery (d) wire
8. 8.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
9. 9.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with V inside (c) many long-short pairs (d) a circle with a cross
10. 10.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with an X in it (c) triangle, bar and arrows (d) a dot where wires meet
11. 11.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) battery (c) bulb (d) cell
12. 12.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) triangle against a bar (c) two equal parallel lines (d) a circle with V inside
13. 13.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
14. 14.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a circle with V inside (c) triangle against a bar (d) a dot where wires meet
15. 15.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) resistor (c) cell (d) junction
16. 16.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
17. 17.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
18. 18.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) triangle, bar and arrows (c) a circle with M inside (d) a plain rectangle
19. 19.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
20. 20.True or false: a circle with M inside is the symbol for an LED. (a) True (b) False
21. 21.True or false: a line lifted at a gap is the symbol for a capacitor. (a) False (b) True
22. 22.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) battery (c) voltmeter (d) bulb
24. 24.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) capacitor (c) LED (d) diode
26. 26.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) switch (c) ammeter (d) resistor
27. 27.Which drawing is the symbol for a battery? (a) a circle with a cross (b) two equal parallel lines (c) two or more cell symbols (d) a dot where wires meet
28. 28.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) triangle, bar and arrows (c) many long-short pairs (d) a circle with M inside
29. 29.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
30. 30.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
31. 31.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
32. 32.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) False (b) True
33. 33.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a circle with M inside (c) a straight line (d) triangle, bar and arrows
34. 34.True or false: one tall, one short bar is the symbol for a voltmeter. (a) False (b) True
35. 35.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) a line lifted at a gap
36. 36.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a circle with an X in it (c) two or more cell symbols (d) a plain rectangle
37. 37.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False
38. 38.True or false: two equal parallel lines is the symbol for a wire. (a) True (b) False
39. 39.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) resistor (c) bulb (d) motor

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