Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 587 · 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 a junction? (a) a circle with a cross (b) a circle with A inside (c) a plain rectangle (d) a dot where wires meet
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
3. 3.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) battery (c) bulb (d) wire
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) motor (c) bulb (d) resistor
6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) diode (c) resistor (d) junction
7. 7.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a small empty box (c) a circle with a cross (d) a circle with M inside
8. 8.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a small empty box (c) many long-short pairs (d) a circle with a cross
9. 9.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
10. 10.True or false: a small empty box is the symbol for a switch. (a) True (b) False
11. 11.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with A inside (c) triangle against a bar (d) a circle with an X in it
12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) motor (c) battery (d) voltmeter
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) wire (c) capacitor (d) battery
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
15. 15.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
16. 16.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
17. 17.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) two or more cell symbols (c) a circle with a cross (d) triangle against a bar
18. 18.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) capacitor (c) battery (d) diode
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) ammeter (c) motor (d) diode
20. 20.Which drawing is the symbol for a switch? (a) triangle against a bar (b) a plain rectangle (c) a line lifted at a gap (d) one tall, one short bar
21. 21.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) False (b) True
22. 22.True or false: many long-short pairs is the symbol for a bulb. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) switch (c) battery (d) voltmeter
24. 24.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
25. 25.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) motor (c) capacitor (d) LED
27. 27.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with A inside (c) a dot where wires meet (d) a line lifted at a gap
28. 28.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with a cross (c) a small empty box (d) triangle, bar and arrows
29. 29.True or false: a dot where wires meet is the symbol for an ammeter. (a) False (b) True
30. 30.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
31. 31.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) a circle with V inside (c) a circle with M inside (d) a straight line
32. 32.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) two or more cell symbols (c) two equal parallel lines (d) a circle with an X in it
33. 33.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) LED (c) switch (d) diode
34. 34.True or false: two or more cell symbols is the symbol for a motor. (a) False (b) True
35. 35.True or false: a circle with an X in it is the symbol for an LED. (a) True (b) False
36. 36.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) voltmeter (c) diode (d) cell
38. 38.True or false: a circle with M inside is the symbol for an LED. (a) False (b) True
39. 39.True or false: a straight line is the symbol for a wire. (a) True (b) False
40. 40.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) one tall, one short bar (c) many long-short pairs (d) two equal parallel lines

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