Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 506 · 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) neither line (b) the shorter line (c) both lines (d) the longer line
2. 2.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) a circle with A inside (c) two equal parallel lines (d) a line lifted at a gap
3. 3.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) triangle against a bar (c) a long and a short line (d) two equal parallel lines
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) diode (c) motor (d) battery
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) diode (c) cell (d) LED
7. 7.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
8. 8.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a long and a short line (c) a circle with V inside (d) a straight line
9. 9.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False
10. 10.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
11. 11.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
13. 13.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) cell (c) junction (d) capacitor
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) battery (c) cell (d) motor
15. 15.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a long and a short line (c) a circle with A inside (d) a circle with an X in it
16. 16.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a small empty box (c) a straight line (d) a line lifted at a gap
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) cell (c) wire (d) bulb
18. 18.True or false: a straight line is the symbol for a wire. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) switch (c) resistor (d) LED
20. 20.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) many long-short pairs (c) a small empty box (d) triangle, bar and arrows
21. 21.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
22. 22.Which drawing is the symbol for a junction? (a) a small empty box (b) a dot where wires meet (c) a circle with V inside (d) a circle with a cross
23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) switch (c) diode (d) cell
24. 24.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) diode (c) LED (d) switch
25. 25.True or false: two or more cell symbols is the symbol for a motor. (a) True (b) False
26. 26.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a circle with an X in it (d) a small empty box
27. 27.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) two equal parallel lines (c) a circle with a cross (d) a long and a short line
28. 28.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
29. 29.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) wire (c) motor (d) resistor
31. 31.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
32. 32.True or false: a line lifted at a gap is the symbol for a diode. (a) True (b) False
33. 33.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
34. 34.True or false: many long-short pairs is the symbol for a diode. (a) False (b) True
35. 35.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) junction (c) bulb (d) switch
37. 37.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) bulb (c) battery (d) cell
38. 38.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) cell (c) bulb (d) ammeter
39. 39.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle against a bar (c) one tall, one short bar (d) a circle with an X in it
40. 40.True or false: two equal parallel lines is the symbol for a cell. (a) True (b) False

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