Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 715 · 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 circuit diagram, which part is drawn as a long and a short line? (a) junction (b) bulb (c) cell (d) wire
2. 2.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a straight line (c) a circle with a cross (d) a circle with A inside
3. 3.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
4. 4.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a plain rectangle (c) a circle with M inside (d) a circle with V inside
5. 5.True or false: a straight line is the symbol for an ammeter. (a) False (b) True
6. 6.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
7. 7.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) cell (c) junction (d) resistor
9. 9.True or false: a straight line is the symbol for a wire. (a) False (b) True
10. 10.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) resistor (c) diode (d) motor
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
13. 13.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
14. 14.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a circle with V inside (c) a circle with M inside (d) a circle with A inside
15. 15.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a circle with an X in it (c) one tall, one short bar (d) a circle with V inside
16. 16.True or false: a circle with M inside is the symbol for an LED. (a) False (b) True
17. 17.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) two equal parallel lines (c) a straight line (d) a circle with a cross
18. 18.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) voltmeter (c) motor (d) cell
20. 20.True or false: triangle against a bar is the symbol for an ammeter. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) wire (c) junction (d) LED
22. 22.Which drawing is the symbol for a wire? (a) a plain rectangle (b) a circle with M inside (c) a circle with A inside (d) a straight line
23. 23.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) diode (c) ammeter (d) LED
25. 25.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) cell (c) ammeter (d) switch
27. 27.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) triangle, bar and arrows (c) a circle with a cross (d) a circle with an X in it
28. 28.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) junction (c) diode (d) bulb
29. 29.Which drawing is the symbol for a diode? (a) a circle with A inside (b) a circle with a cross (c) triangle against a bar (d) a plain rectangle
30. 30.Which drawing is the symbol for a cell? (a) many long-short pairs (b) two or more cell symbols (c) a straight line (d) one tall, one short bar
31. 31.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
32. 32.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a line lifted at a gap (c) a circle with a cross (d) a plain rectangle
33. 33.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) ammeter (c) capacitor (d) voltmeter
35. 35.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) bulb (c) switch (d) capacitor
36. 36.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) LED (c) cell (d) resistor
37. 37.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) capacitor (c) wire (d) junction
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) capacitor (d) switch
39. 39.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
40. 40.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) one tall, one short bar (c) a circle with A inside (d) two or more cell symbols

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