Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 155 · 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 an LED? (a) a straight line (b) a long and a short line (c) a circle with A inside (d) triangle, bar and arrows
2. 2.True or false: many long-short pairs is the symbol for a voltmeter. (a) False (b) True
3. 3.True or false: a plain rectangle is the symbol for a voltmeter. (a) True (b) False
4. 4.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
5. 5.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) battery (c) ammeter (d) junction
7. 7.Which drawing is the symbol for a diode? (a) a circle with A inside (b) a line lifted at a gap (c) triangle against a bar (d) a circle with an X in it
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) ammeter (c) bulb (d) voltmeter
9. 9.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) junction (c) battery (d) ammeter
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) diode (c) voltmeter (d) motor
11. 11.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
12. 12.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) one tall, one short bar (c) a circle with a cross (d) a small empty box
13. 13.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) one tall, one short bar (c) a circle with a cross (d) a small empty box
14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) cell (c) ammeter (d) diode
15. 15.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) one tall, one short bar (c) two equal parallel lines (d) a circle with M inside
16. 16.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) bulb (c) ammeter (d) diode
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) motor (c) resistor (d) bulb
20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) battery (c) junction (d) capacitor
21. 21.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) cell (c) switch (d) resistor
22. 22.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a small empty box (c) a circle with a cross (d) a circle with V inside
23. 23.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with A inside (c) a circle with V inside (d) many long-short pairs
24. 24.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False
25. 25.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) cell (c) diode (d) capacitor
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) resistor (c) junction (d) battery
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) voltmeter (c) motor (d) diode
29. 29.True or false: a straight line is the symbol for a wire. (a) False (b) True
30. 30.✏️ 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
31. 31.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False
32. 32.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) two or more cell symbols (c) triangle against a bar (d) two equal parallel lines
33. 33.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) a circle with V inside (c) two or more cell symbols (d) a line lifted at a gap
34. 34.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) battery (c) resistor (d) cell
36. 36.True or false: a plain rectangle is the symbol for a capacitor. (a) False (b) True
37. 37.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) many long-short pairs (c) a straight line (d) two equal parallel lines
38. 38.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
39. 39.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
40. 40.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a long and a short line (c) a circle with M inside (d) two or more cell symbols

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