Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 987 · 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 cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
2. 2.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) many long-short pairs (c) a dot where wires meet (d) two or more cell symbols
3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) bulb (c) capacitor (d) voltmeter
4. 4.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) resistor (c) motor (d) capacitor
5. 5.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) voltmeter (d) wire
6. 6.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
7. 7.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) two equal parallel lines (c) a plain rectangle (d) a long and a short line
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
9. 9.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) capacitor (c) junction (d) LED
10. 10.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a plain rectangle (c) a circle with A inside (d) a circle with M inside
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) junction (c) resistor (d) switch
12. 12.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
13. 13.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
14. 14.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
15. 15.Which drawing is the symbol for a motor? (a) a circle with a cross (b) a circle with M inside (c) triangle against a bar (d) two or more cell symbols
16. 16.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
17. 17.True or false: a circle with a cross is the symbol for a motor. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) motor (c) junction (d) voltmeter
19. 19.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a plain rectangle (c) a circle with M inside (d) a circle with an X in it
20. 20.Which drawing is the symbol for a cell? (a) a long and a short line (b) a straight line (c) a dot where wires meet (d) triangle against a bar
21. 21.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
22. 22.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
23. 23.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) diode (c) capacitor (d) resistor
24. 24.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
25. 25.True or false: a straight line is the symbol for a resistor. (a) False (b) True
26. 26.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a small empty box (c) two equal parallel lines (d) a line lifted at a gap
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) resistor (c) ammeter (d) bulb
28. 28.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) a circle with a cross (c) a straight line (d) many long-short pairs
29. 29.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
30. 30.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) diode (c) cell (d) ammeter
32. 32.Which drawing is the symbol for a resistor? (a) a straight line (b) two or more cell symbols (c) a dot where wires meet (d) a small empty box
33. 33.Which drawing is the symbol for a diode? (a) a circle with M inside (b) a small empty box (c) two equal parallel lines (d) triangle against a bar
34. 34.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
35. 35.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
36. 36.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
37. 37.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) a circle with V inside (c) a dot where wires meet (d) triangle, bar and arrows
38. 38.Which drawing is the symbol for a bulb? (a) a small empty box (b) triangle against a bar (c) a circle with a cross (d) a dot where wires meet
39. 39.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
40. 40.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) a circle with V inside (c) a circle with a cross (d) triangle against a bar

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