Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 863 · 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 bulb? (a) a circle with a cross (b) two or more cell symbols (c) a line lifted at a gap (d) a plain rectangle
2. 2.True or false: a dot where wires meet is the symbol for a diode. (a) False (b) True
3. 3.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
4. 4.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
5. 5.Which drawing is the symbol for an LED? (a) many long-short pairs (b) a circle with a cross (c) a small empty box (d) triangle, bar and arrows
6. 6.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) voltmeter (c) bulb (d) battery
8. 8.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) ammeter (c) resistor (d) motor
9. 9.Which drawing is the symbol for a motor? (a) a long and a short line (b) two equal parallel lines (c) a circle with M inside (d) a small empty box
10. 10.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) ammeter (c) motor (d) battery
11. 11.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) motor (c) diode (d) capacitor
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
14. 14.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) two equal parallel lines (c) a long and a short line (d) a circle with an X in it
15. 15.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
16. 16.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
17. 17.Which drawing is the symbol for a switch? (a) a straight line (b) a line lifted at a gap (c) triangle, bar and arrows (d) a plain rectangle
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) diode (c) wire (d) bulb
19. 19.Which drawing is the symbol for a bulb? (a) a straight line (b) one tall, one short bar (c) many long-short pairs (d) a circle with an X in it
20. 20.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
21. 21.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
22. 22.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
23. 23.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) a circle with V inside (c) two equal parallel lines (d) a line lifted at a gap
24. 24.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
25. 25.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) bulb (c) voltmeter (d) resistor
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) bulb (c) battery (d) resistor
28. 28.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
29. 29.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) a small empty box (c) many long-short pairs (d) triangle against a bar
30. 30.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
31. 31.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with a cross (c) a small empty box (d) a circle with an X in it
32. 32.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) one tall, one short bar (c) a dot where wires meet (d) triangle against a bar
33. 33.True or false: a plain rectangle is the symbol for a battery. (a) True (b) False
34. 34.True or false: a circle with V inside is the symbol for a wire. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) bulb (c) wire (d) junction
36. 36.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) cell (c) junction (d) LED
37. 37.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
38. 38.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) triangle, bar and arrows (c) a circle with an X in it (d) a straight line
39. 39.Which drawing is the symbol for a wire? (a) triangle against a bar (b) two or more cell symbols (c) a straight line (d) two equal parallel lines
40. 40.True or false: a circle with V inside is the symbol for a resistor. (a) False (b) True

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