Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 780 · 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.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with V inside (c) a line lifted at a gap (d) two or more cell symbols
2. 2.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with A inside (c) a circle with V inside (d) a plain rectangle
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) capacitor (c) bulb (d) wire
4. 4.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) two or more cell symbols (c) a circle with V inside (d) a circle with a cross
5. 5.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) ammeter (c) diode (d) motor
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) dotted circles (d) wavy lines
7. 7.True or false: a straight line is the symbol for a cell. (a) False (b) True
8. 8.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with a cross (c) two equal parallel lines (d) a circle with A inside
9. 9.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) voltmeter (c) resistor (d) cell
10. 10.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) True (b) False
11. 11.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a dot where wires meet (c) a long and a short line (d) triangle against a bar
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) cell (c) voltmeter (d) junction
13. 13.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) diode (c) switch (d) wire
14. 14.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
15. 15.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
16. 16.Which drawing is the symbol for a battery? (a) a circle with A inside (b) a straight line (c) many long-short pairs (d) a circle with an X in it
17. 17.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with a cross (c) a long and a short line (d) one tall, one short bar
18. 18.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a circle with M inside (c) a small empty box (d) a circle with an X in it
19. 19.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) LED (c) resistor (d) voltmeter
21. 21.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) voltmeter (c) wire (d) junction
23. 23.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) battery (c) cell (d) voltmeter
25. 25.True or false: one tall, one short bar is the symbol for a voltmeter. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) capacitor (c) switch (d) bulb
27. 27.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
28. 28.Which drawing is the symbol for a wire? (a) a plain rectangle (b) a line lifted at a gap (c) a straight line (d) two equal parallel lines
29. 29.True or false: a small empty box is the symbol for a battery. (a) False (b) True
30. 30.True or false: a straight line is the symbol for an LED. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) motor (c) cell (d) voltmeter
32. 32.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) wire (c) voltmeter (d) switch
33. 33.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
34. 34.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a circle with an X in it (c) triangle against a bar (d) a dot where wires meet
35. 35.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) motor (c) switch (d) cell
36. 36.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with M inside (c) a long and a short line (d) one tall, one short bar
37. 37.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) diode (c) capacitor (d) cell
39. 39.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) LED (c) battery (d) switch
40. 40.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) voltmeter (c) ammeter (d) junction

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