Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 925 · 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: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
2. 2.✏️ 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
3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) bulb (c) wire (d) LED
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) bulb (c) wire (d) motor
6. 6.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) capacitor (c) motor (d) resistor
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) voltmeter (c) switch (d) ammeter
9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) capacitor (d) wire
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) motor (c) voltmeter (d) battery
11. 11.Which drawing is the symbol for a battery? (a) a straight line (b) two or more cell symbols (c) a circle with A inside (d) two equal parallel lines
12. 12.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle, bar and arrows (c) a straight line (d) a long and a short line
13. 13.True or false: a small empty box is the symbol for an LED. (a) True (b) False
14. 14.Which drawing is the symbol for a bulb? (a) a straight line (b) a circle with V inside (c) two or more cell symbols (d) a circle with an X in it
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) ammeter (c) switch (d) diode
16. 16.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) triangle against a bar (c) triangle, bar and arrows (d) a circle with V inside
17. 17.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
18. 18.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) junction (c) capacitor (d) switch
20. 20.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) diode (c) switch (d) battery
21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) diode (c) bulb (d) cell
22. 22.Which drawing is the symbol for a battery? (a) a circle with M inside (b) triangle, bar and arrows (c) many long-short pairs (d) triangle against a bar
23. 23.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
24. 24.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
25. 25.True or false: a straight line is the symbol for a wire. (a) True (b) False
26. 26.Which drawing is the symbol for a diode? (a) a small empty box (b) two or more cell symbols (c) triangle against a bar (d) a line lifted at a gap
27. 27.True or false: a line lifted at a gap is the symbol for an ammeter. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) voltmeter (c) switch (d) cell
29. 29.True or false: a plain rectangle is the symbol for a bulb. (a) False (b) True
30. 30.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) triangle against a bar (c) a plain rectangle (d) a long and a short line
31. 31.True or false: a circle with V inside is the symbol for a wire. (a) False (b) True
32. 32.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
33. 33.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with an X in it (c) a circle with A inside (d) a circle with M inside
34. 34.Which drawing is the symbol for a switch? (a) a straight line (b) a circle with A inside (c) a line lifted at a gap (d) a circle with a cross
35. 35.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
36. 36.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
37. 37.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
38. 38.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) one tall, one short bar (c) triangle against a bar (d) triangle, bar and arrows
39. 39.True or false: a circle with V inside is the symbol for a motor. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) ammeter (c) resistor (d) battery

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