Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 824 · 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 voltmeter? (a) a circle with an X in it (b) a small empty box (c) one tall, one short bar (d) a circle with V inside
2. 2.True or false: a circle with V inside is the symbol for a diode. (a) True (b) False
3. 3.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
4. 4.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
5. 5.True or false: a line lifted at a gap is the symbol for a wire. (a) True (b) False
6. 6.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
7. 7.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) one tall, one short bar (c) a small empty box (d) two equal parallel lines
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) wire (c) capacitor (d) cell
9. 9.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) wire (c) capacitor (d) resistor
11. 11.Which drawing is the symbol for a junction? (a) a long and a short line (b) a circle with V inside (c) a dot where wires meet (d) two equal parallel lines
12. 12.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a straight line (c) a circle with an X in it (d) a long and a short line
13. 13.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a plain rectangle (c) one tall, one short bar (d) a circle with V inside
14. 14.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
15. 15.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) capacitor (c) bulb (d) ammeter
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
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 switch? (a) a line lifted at a gap (b) a straight line (c) many long-short pairs (d) triangle against a bar
19. 19.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
20. 20.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
21. 21.Which drawing is the symbol for a diode? (a) a circle with M inside (b) two equal parallel lines (c) a line lifted at a gap (d) triangle against a bar
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) motor (c) resistor (d) LED
23. 23.True or false: a small empty box is the symbol for a battery. (a) False (b) True
24. 24.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) battery (c) motor (d) wire
26. 26.Which drawing is the symbol for a battery? (a) a long and a short line (b) a circle with M inside (c) a circle with a cross (d) two or more cell symbols
27. 27.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) diode (c) cell (d) LED
28. 28.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) battery (c) ammeter (d) diode
30. 30.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) bulb (c) diode (d) voltmeter
32. 32.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) bulb (c) switch (d) junction
33. 33.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) cell (c) LED (d) battery
34. 34.Which drawing is the symbol for an LED? (a) a circle with M inside (b) a plain rectangle (c) triangle, bar and arrows (d) a small empty box
35. 35.True or false: a circle with A inside is the symbol for a diode. (a) True (b) False
36. 36.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a straight line (c) triangle against a bar (d) a plain rectangle
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) ammeter (c) resistor (d) cell
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) LED (c) wire (d) motor
39. 39.True or false: a straight line is the symbol for a diode. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) bulb (c) cell (d) capacitor

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