Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 119 · 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.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
2. 2.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) triangle, bar and arrows (c) two equal parallel lines (d) a circle with A inside
3. 3.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) many long-short pairs (c) a line lifted at a gap (d) a circle with a cross
4. 4.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) ammeter (c) switch (d) capacitor
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
7. 7.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) one tall, one short bar (c) many long-short pairs (d) a circle with a cross
8. 8.True or false: many long-short pairs is the symbol for a motor. (a) False (b) True
9. 9.Which drawing is the symbol for a wire? (a) a straight line (b) many long-short pairs (c) a circle with V inside (d) a line lifted at a gap
10. 10.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) battery (c) diode (d) ammeter
12. 12.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) battery (c) cell (d) bulb
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) junction (c) voltmeter (d) diode
15. 15.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False
16. 16.True or false: two or more cell symbols is the symbol for a capacitor. (a) False (b) True
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
18. 18.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) triangle against a bar (c) one tall, one short bar (d) triangle, bar and arrows
19. 19.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with M inside (c) a circle with A inside (d) triangle, bar and arrows
20. 20.True or false: a small empty box 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) resistor (c) LED (d) wire
22. 22.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
23. 23.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
24. 24.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
25. 25.Which drawing is the symbol for a junction? (a) a small empty box (b) a long and a short line (c) a dot where wires meet (d) many long-short pairs
26. 26.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a circle with V inside (c) a small empty box (d) a long and a short line
27. 27.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) bulb (c) switch (d) resistor
29. 29.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) ammeter (c) battery (d) switch
31. 31.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
32. 32.True or false: a straight line is the symbol for a wire. (a) False (b) True
33. 33.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) two or more cell symbols (c) two equal parallel lines (d) a circle with A inside
34. 34.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
35. 35.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) many long-short pairs (c) a line lifted at a gap (d) one tall, one short bar
36. 36.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
37. 37.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a circle with A inside (c) a plain rectangle (d) triangle against a bar
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) ammeter (c) switch (d) battery
39. 39.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) switch (c) wire (d) cell
40. 40.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a small empty box (c) two or more cell symbols (d) a long and a short line

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