Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 342 · 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.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) to make it colourful (d) symbols are heavier
2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) resistor (c) motor (d) diode
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) LED (c) wire (d) voltmeter
4. 4.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
6. 6.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) triangle, bar and arrows (c) a circle with an X in it (d) many long-short pairs
7. 7.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
8. 8.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with V inside (c) two equal parallel lines (d) one tall, one short bar
9. 9.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
10. 10.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) one tall, one short bar (c) triangle, bar and arrows (d) a circle with a cross
11. 11.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) motor (c) ammeter (d) junction
12. 12.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) two equal parallel lines (c) a line lifted at a gap (d) a plain rectangle
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) capacitor (c) battery (d) switch
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) resistor (c) cell (d) bulb
15. 15.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) one tall, one short bar (c) triangle, bar and arrows (d) a small empty box
16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) cell (c) wire (d) diode
17. 17.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
18. 18.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) diode (c) LED (d) voltmeter
20. 20.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
21. 21.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) a circle with M inside (c) two equal parallel lines (d) one tall, one short bar
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) resistor (c) ammeter (d) cell
23. 23.True or false: a dot where wires meet is the symbol for an LED. (a) True (b) False
24. 24.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) motor (c) bulb (d) resistor
26. 26.True or false: a circle with M inside is the symbol for a cell. (a) False (b) True
27. 27.True or false: triangle against a bar is the symbol for an ammeter. (a) True (b) False
28. 28.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) wire (c) diode (d) ammeter
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) voltmeter (c) ammeter (d) switch
31. 31.True or false: a circle with M inside is the symbol for a capacitor. (a) True (b) False
32. 32.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with a cross (c) a dot where wires meet (d) a circle with M inside
33. 33.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a circle with M inside (c) a straight line (d) two or more cell symbols
34. 34.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) LED (c) junction (d) resistor
35. 35.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
36. 36.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) triangle, bar and arrows (c) a circle with a cross (d) a plain rectangle
37. 37.True or false: two equal parallel lines is the symbol for a resistor. (a) False (b) True
38. 38.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
39. 39.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a long and a short line (c) many long-short pairs (d) a circle with an X in it
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) cell (c) LED (d) bulb

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