Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 774 · 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 cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
2. 2.True or false: a circle with a cross is the symbol for a cell. (a) False (b) True
3. 3.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) triangle against a bar (c) a long and a short line (d) a circle with a cross
4. 4.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
5. 5.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
6. 6.Which drawing is the symbol for a diode? (a) a circle with M inside (b) one tall, one short bar (c) two equal parallel lines (d) triangle against a bar
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) voltmeter (c) motor (d) junction
8. 8.True or false: a line lifted at a gap is the symbol for a battery. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) ammeter (c) wire (d) voltmeter
10. 10.True or false: a straight line is the symbol for a wire. (a) False (b) True
11. 11.✏️ 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
12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) cell (c) wire (d) junction
13. 13.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) a line lifted at a gap (c) a circle with M inside (d) two equal parallel lines
14. 14.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) motor (c) cell (d) wire
15. 15.Which drawing is the symbol for an LED? (a) a straight line (b) two equal parallel lines (c) a line lifted at a gap (d) triangle, bar and arrows
16. 16.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) resistor (c) battery (d) junction
17. 17.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) a circle with A inside (c) a small empty box (d) a long and a short line
18. 18.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) battery (c) cell (d) voltmeter
19. 19.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a straight line (c) two or more cell symbols (d) many long-short pairs
20. 20.True or false: a circle with an X in it is the symbol for a junction. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) junction (c) switch (d) resistor
22. 22.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) cell (c) motor (d) switch
24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) battery (c) bulb (d) resistor
25. 25.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
26. 26.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a small empty box (c) many long-short pairs (d) a line lifted at a gap
27. 27.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
28. 28.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
29. 29.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
30. 30.True or false: a circle with A inside is the symbol for a cell. (a) False (b) True
31. 31.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) switch (c) capacitor (d) battery
33. 33.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) ammeter (c) resistor (d) diode
34. 34.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) True (b) False
35. 35.True or false: a circle with A inside is the symbol for a diode. (a) True (b) False
36. 36.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) resistor (c) ammeter (d) battery
38. 38.Which drawing is the symbol for a switch? (a) a plain rectangle (b) one tall, one short bar (c) a line lifted at a gap (d) a circle with M inside
39. 39.Which drawing is the symbol for a motor? (a) a small empty box (b) a circle with M inside (c) a circle with an X in it (d) a straight line
40. 40.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with a cross (c) a circle with A inside (d) a straight line

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