Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 494 · 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, which part is drawn as a long and a short line? (a) junction (b) LED (c) motor (d) cell
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) junction (c) wire (d) battery
3. 3.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
4. 4.True or false: a long and a short line is the symbol for a junction. (a) True (b) False
5. 5.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a circle with M inside (c) many long-short pairs (d) a circle with an X in it
6. 6.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with M inside (c) a line lifted at a gap (d) triangle against a bar
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) capacitor (c) wire (d) battery
8. 8.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
9. 9.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) motor (c) diode (d) voltmeter
11. 11.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) voltmeter (c) wire (d) switch
13. 13.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) a small empty box (c) two equal parallel lines (d) a circle with a cross
14. 14.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
15. 15.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
16. 16.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) ammeter (c) wire (d) junction
18. 18.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) diode (c) bulb (d) resistor
19. 19.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) cell (d) LED
20. 20.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) resistor (c) bulb (d) switch
21. 21.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
22. 22.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) two or more cell symbols (c) a circle with an X in it (d) a line lifted at a gap
23. 23.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) two equal parallel lines (c) one tall, one short bar (d) a long and a short line
24. 24.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
25. 25.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
26. 26.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a dot where wires meet (c) one tall, one short bar (d) a circle with an X in it
27. 27.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) battery (c) bulb (d) diode
29. 29.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
30. 30.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
31. 31.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
32. 32.Which drawing is the symbol for an LED? (a) a plain rectangle (b) triangle, bar and arrows (c) two equal parallel lines (d) a small empty box
33. 33.True or false: a circle with a cross is the symbol for an LED. (a) False (b) True
34. 34.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
35. 35.Which drawing is the symbol for a diode? (a) a circle with V inside (b) triangle, bar and arrows (c) triangle against a bar (d) many long-short pairs
36. 36.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
37. 37.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
38. 38.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) triangle against a bar (c) a small empty box (d) one tall, one short bar
39. 39.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) ammeter (c) LED (d) switch
40. 40.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) motor (c) battery (d) cell

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