Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 378 · 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) capacitor (b) battery (c) cell (d) switch
2. 2.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
3. 3.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a plain rectangle (c) triangle, bar and arrows (d) a circle with V inside
4. 4.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) diode (c) bulb (d) junction
5. 5.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) battery (c) bulb (d) motor
6. 6.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
7. 7.Which drawing is the symbol for a capacitor? (a) a small empty box (b) two equal parallel lines (c) one tall, one short bar (d) triangle, bar and arrows
8. 8.True or false: two or more cell symbols is the symbol for an ammeter. (a) False (b) True
9. 9.Which drawing is the symbol for a cell? (a) a long and a short line (b) two or more cell symbols (c) a circle with A inside (d) a circle with M inside
10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) cell (c) battery (d) diode
11. 11.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
12. 12.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with an X in it (c) a line lifted at a gap (d) two equal parallel lines
13. 13.Which drawing is the symbol for a cell? (a) a circle with a cross (b) two or more cell symbols (c) a straight line (d) one tall, one short bar
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
15. 15.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
16. 16.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
17. 17.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
18. 18.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
19. 19.True or false: a line lifted at a gap is the symbol for a capacitor. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) switch (c) cell (d) junction
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) resistor (c) switch (d) battery
22. 22.True or false: a circle with an X in it is the symbol for an ammeter. (a) True (b) False
23. 23.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) motor (d) capacitor
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) motor (c) junction (d) cell
26. 26.Which drawing is the symbol for an LED? (a) a small empty box (b) triangle, bar and arrows (c) a long and a short line (d) a circle with V inside
27. 27.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a line lifted at a gap (c) a straight line (d) a circle with A inside
28. 28.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) battery (c) cell (d) capacitor
30. 30.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
31. 31.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a plain rectangle (c) a circle with V inside (d) triangle against a bar
32. 32.True or false: a small empty box is the symbol for a capacitor. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) diode (c) motor (d) resistor
34. 34.True or false: a circle with V inside is the symbol for a junction. (a) False (b) True
35. 35.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
36. 36.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) a small empty box (c) a long and a short line (d) one tall, one short bar
37. 37.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) battery (c) diode (d) wire
38. 38.Which drawing is the symbol for a junction? (a) a long and a short line (b) a dot where wires meet (c) many long-short pairs (d) two or more cell symbols
39. 39.True or false: a circle with a cross is the symbol for a wire. (a) True (b) False
40. 40.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True

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