Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 936 · 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 cell? (a) a straight line (b) two equal parallel lines (c) one tall, one short bar (d) a line lifted at a gap
2. 2.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) capacitor (c) switch (d) diode
3. 3.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) capacitor (c) bulb (d) switch
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
5. 5.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a circle with M inside (c) a long and a short line (d) a straight line
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) wire (c) motor (d) ammeter
7. 7.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) triangle, bar and arrows (c) a circle with V inside (d) a small empty box
8. 8.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with an X in it (c) a plain rectangle (d) one tall, one short bar
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
10. 10.True or false: a circle with a cross is the symbol for a wire. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) bulb (c) battery (d) switch
12. 12.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) triangle against a bar (c) a line lifted at a gap (d) a plain rectangle
13. 13.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) wire (c) cell (d) voltmeter
14. 14.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
15. 15.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a circle with a cross (c) a long and a short line (d) two equal parallel lines
16. 16.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) resistor (c) ammeter (d) wire
17. 17.✏️ 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
18. 18.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) triangle against a bar (c) triangle, bar and arrows (d) a plain rectangle
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) cell (c) battery (d) junction
20. 20.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a circle with a cross (c) a line lifted at a gap (d) two or more cell symbols
21. 21.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) bulb (c) LED (d) voltmeter
22. 22.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a long and a short line (c) many long-short pairs (d) a line lifted at a gap
23. 23.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a plain rectangle (c) a line lifted at a gap (d) a dot where wires meet
24. 24.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
25. 25.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) triangle against a bar (c) two equal parallel lines (d) a circle with V inside
26. 26.True or false: a plain rectangle is the symbol for a switch. (a) False (b) True
27. 27.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
28. 28.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True
29. 29.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
30. 30.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) wire (c) switch (d) battery
32. 32.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) a circle with an X in it (c) a small empty box (d) triangle against a bar
33. 33.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a straight line (c) triangle, bar and arrows (d) a small empty box
34. 34.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
35. 35.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with a cross (c) a circle with V inside (d) two or more cell symbols
36. 36.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
37. 37.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False
38. 38.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) diode (c) motor (d) battery
40. 40.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) switch (c) cell (d) motor

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