Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 972 · 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 circle with a cross? (a) motor (b) battery (c) bulb (d) voltmeter
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) ammeter (c) wire (d) battery
3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) junction (c) wire (d) resistor
4. 4.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a long and a short line (c) a circle with M inside (d) a line lifted at a gap
5. 5.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) many long-short pairs (c) one tall, one short bar (d) a circle with V inside
6. 6.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
7. 7.True or false: triangle against a bar is the symbol for a capacitor. (a) False (b) True
8. 8.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with a cross (c) triangle against a bar (d) a dot where wires meet
9. 9.True or false: a circle with M inside is the symbol for a capacitor. (a) False (b) True
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: a dot where wires meet is the symbol for a battery. (a) True (b) False
12. 12.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) bulb (c) capacitor (d) voltmeter
14. 14.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
16. 16.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) wire (c) LED (d) battery
17. 17.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a straight line (c) a small empty box (d) a circle with A inside
18. 18.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) triangle, bar and arrows (c) a circle with A inside (d) a long and a short line
19. 19.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) wire (c) capacitor (d) battery
20. 20.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) bulb (c) capacitor (d) voltmeter
22. 22.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with a cross (c) a circle with A inside (d) one tall, one short bar
23. 23.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) voltmeter (c) wire (d) cell
25. 25.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
26. 26.True or false: many long-short pairs is the symbol for a motor. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) diode (c) resistor (d) switch
28. 28.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) cell (c) LED (d) switch
29. 29.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a straight line (c) a small empty box (d) a long and a short line
30. 30.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
31. 31.True or false: a circle with A inside is the symbol for a capacitor. (a) True (b) False
32. 32.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
33. 33.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with A inside (c) a straight line (d) a circle with a cross
34. 34.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
35. 35.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a plain rectangle (c) triangle against a bar (d) a straight line
36. 36.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
37. 37.Which drawing is the symbol for an LED? (a) a circle with V inside (b) triangle, bar and arrows (c) two equal parallel lines (d) a circle with a cross
38. 38.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) resistor (c) capacitor (d) motor
39. 39.Which drawing is the symbol for a cell? (a) a straight line (b) a plain rectangle (c) one tall, one short bar (d) a circle with M inside
40. 40.True or false: one tall, one short bar is the symbol for a bulb. (a) False (b) True

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