Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 734 · 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 circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) switch (c) resistor (d) bulb
3. 3.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
5. 5.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
6. 6.Which drawing is the symbol for a cell? (a) a small empty box (b) a circle with M inside (c) triangle, bar and arrows (d) one tall, one short bar
7. 7.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a plain rectangle (c) a line lifted at a gap (d) a long and a short line
8. 8.True or false: a straight line is the symbol for a wire. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) capacitor (c) switch (d) LED
10. 10.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) resistor (c) cell (d) diode
11. 11.True or false: a circle with an X in it is the symbol for a cell. (a) False (b) True
12. 12.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) a circle with V inside (c) a circle with M inside (d) a line lifted at a gap
13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) resistor (c) junction (d) bulb
14. 14.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
15. 15.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
16. 16.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) a circle with a cross (c) a dot where wires meet (d) two equal parallel lines
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) cell (c) resistor (d) capacitor
18. 18.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) resistor (c) LED (d) bulb
20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) battery (c) motor (d) diode
21. 21.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a long and a short line (c) two or more cell symbols (d) a dot where wires meet
22. 22.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
23. 23.Which drawing is the symbol for a diode? (a) a circle with a cross (b) a dot where wires meet (c) a plain rectangle (d) triangle against a bar
24. 24.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a plain rectangle (c) a circle with A inside (d) a straight line
25. 25.True or false: a circle with a cross is the symbol for an LED. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) diode (c) motor (d) capacitor
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) switch (c) ammeter (d) capacitor
28. 28.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) LED (c) bulb (d) resistor
29. 29.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) diode (c) battery (d) resistor
30. 30.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) many long-short pairs (c) a circle with a cross (d) one tall, one short bar
31. 31.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) cell (c) switch (d) ammeter
32. 32.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
33. 33.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a long and a short line (c) a line lifted at a gap (d) two or more cell symbols
34. 34.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) two or more cell symbols (c) a circle with an X in it (d) a circle with V inside
35. 35.True or false: a small empty box is the symbol for a junction. (a) True (b) False
36. 36.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
37. 37.True or false: two or more cell symbols is the symbol for an LED. (a) True (b) False
38. 38.True or false: a plain rectangle is the symbol for a capacitor. (a) False (b) True
39. 39.True or false: a small empty box is the symbol for a voltmeter. (a) True (b) False
40. 40.Which drawing is the symbol for a junction? (a) a small empty box (b) a dot where wires meet (c) two or more cell symbols (d) a circle with an X in it

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