Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 947 · 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.✏️ 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
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) resistor (c) ammeter (d) wire
4. 4.Which drawing is the symbol for a battery? (a) a circle with V inside (b) a circle with an X in it (c) a line lifted at a gap (d) many long-short pairs
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
6. 6.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
7. 7.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) motor (c) cell (d) LED
9. 9.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
10. 10.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
11. 11.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a small empty box (c) two or more cell symbols (d) a straight line
12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) junction (c) bulb (d) wire
13. 13.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) many long-short pairs (c) a circle with M inside (d) a circle with a cross
14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) ammeter (c) diode (d) junction
15. 15.True or false: a circle with M inside is the symbol for a diode. (a) True (b) False
16. 16.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) switch (c) capacitor (d) cell
18. 18.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) battery (c) capacitor (d) cell
19. 19.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) triangle, bar and arrows (c) a circle with an X in it (d) a long and a short line
20. 20.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
21. 21.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with an X in it (c) a plain rectangle (d) one tall, one short bar
22. 22.Which drawing is the symbol for an LED? (a) a circle with V inside (b) a circle with a cross (c) a long and a short line (d) triangle, bar and arrows
23. 23.Which drawing is the symbol for a capacitor? (a) a straight line (b) two or more cell symbols (c) two equal parallel lines (d) a dot where wires meet
24. 24.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a circle with a cross (c) a small empty box (d) a long and a short line
25. 25.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) junction (d) motor
26. 26.Which drawing is the symbol for a battery? (a) a long and a short line (b) triangle against a bar (c) a straight line (d) two or more cell symbols
27. 27.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
28. 28.True or false: many long-short pairs is the symbol for a cell. (a) False (b) True
29. 29.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
30. 30.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
31. 31.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a circle with a cross (c) a circle with an X in it (d) a small empty box
32. 32.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
33. 33.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a circle with an X in it (c) a line lifted at a gap (d) triangle, bar and arrows
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) resistor (c) voltmeter (d) cell
35. 35.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) junction (c) motor (d) cell
37. 37.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) LED (c) cell (d) switch
39. 39.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) triangle against a bar (c) a circle with V inside (d) two or more cell symbols
40. 40.True or false: a circle with a cross is the symbol for a capacitor. (a) True (b) False

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