Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 522 · 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 circle with a cross? (a) voltmeter (b) switch (c) diode (d) bulb
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
3. 3.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a plain rectangle (c) a circle with V inside (d) many long-short pairs
4. 4.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) switch (c) LED (d) diode
5. 5.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) voltmeter (c) wire (d) cell
6. 6.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
7. 7.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) junction (d) bulb
9. 9.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) two or more cell symbols (c) a circle with V inside (d) triangle against a bar
10. 10.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) triangle against a bar (c) a plain rectangle (d) a circle with a cross
11. 11.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) cell (c) junction (d) capacitor
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
13. 13.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) diode (c) cell (d) LED
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) resistor (c) battery (d) cell
15. 15.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
16. 16.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) LED (c) motor (d) resistor
18. 18.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) junction (d) resistor
19. 19.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a small empty box (c) a circle with M inside (d) a dot where wires meet
20. 20.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) many long-short pairs (c) a straight line (d) triangle against a bar
21. 21.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a line lifted at a gap (c) a straight line (d) triangle, bar and arrows
22. 22.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with V inside (c) two or more cell symbols (d) a circle with M inside
23. 23.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) cell (c) LED (d) switch
25. 25.✏️ 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
26. 26.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a circle with a cross (c) a circle with M inside (d) many long-short pairs
27. 27.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) LED (c) battery (d) voltmeter
28. 28.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) two or more cell symbols (c) a circle with V inside (d) a line lifted at a gap
29. 29.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
30. 30.Which drawing is the symbol for a diode? (a) a long and a short line (b) many long-short pairs (c) a circle with an X in it (d) triangle against a bar
31. 31.True or false: a long and a short line is the symbol for a motor. (a) False (b) True
32. 32.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False
33. 33.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
34. 34.True or false: two or more cell symbols is the symbol for an LED. (a) True (b) False
35. 35.True or false: a straight line is the symbol for a wire. (a) True (b) False
36. 36.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
37. 37.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
38. 38.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a dot where wires meet (c) a plain rectangle (d) two equal parallel lines
39. 39.True or false: a circle with an X in it is the symbol for an LED. (a) True (b) False
40. 40.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True

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