Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 102 · 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.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
2. 2.Which drawing is the symbol for a diode? (a) a small empty box (b) a circle with A inside (c) a circle with a cross (d) triangle against a bar
3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) wire (c) diode (d) ammeter
4. 4.True or false: a straight line is the symbol for a resistor. (a) True (b) False
5. 5.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) a straight line (c) many long-short pairs (d) triangle against a bar
6. 6.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) two equal parallel lines (c) a dot where wires meet (d) a small empty box
7. 7.True or false: a straight line is the symbol for a bulb. (a) False (b) True
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
9. 9.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) battery (c) ammeter (d) resistor
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
11. 11.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a circle with A inside (c) a line lifted at a gap (d) triangle against a bar
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) diode (c) wire (d) bulb
13. 13.True or false: triangle against a bar is the symbol for a resistor. (a) False (b) True
14. 14.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
15. 15.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) LED (c) ammeter (d) resistor
16. 16.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a small empty box (c) a long and a short line (d) a circle with M inside
17. 17.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with M inside (c) triangle against a bar (d) two or more cell symbols
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) ammeter (c) switch (d) voltmeter
19. 19.Which drawing is the symbol for a cell? (a) a small empty box (b) triangle against a bar (c) triangle, bar and arrows (d) a long and a short line
20. 20.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) diode (c) battery (d) switch
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 battery? (a) many long-short pairs (b) a plain rectangle (c) a circle with a cross (d) a line lifted at a gap
23. 23.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) voltmeter (c) cell (d) LED
24. 24.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
25. 25.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
26. 26.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) battery (c) cell (d) junction
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) junction (c) switch (d) diode
29. 29.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) capacitor (d) ammeter
31. 31.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
32. 32.True or false: a circle with a cross is the symbol for a capacitor. (a) True (b) False
33. 33.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True
34. 34.True or false: two or more cell symbols is the symbol for a capacitor. (a) True (b) False
35. 35.Which drawing is the symbol for a motor? (a) a small empty box (b) a circle with M inside (c) a long and a short line (d) a circle with V inside
36. 36.True or false: a dot where wires meet is the symbol for a motor. (a) False (b) True
37. 37.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
38. 38.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with a cross (c) a circle with A inside (d) a straight line
39. 39.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a long and a short line (c) a small empty box (d) a circle with M inside
40. 40.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False

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