Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 917 · 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 junction? (a) a dot where wires meet (b) a plain rectangle (c) triangle, bar and arrows (d) a circle with V inside
2. 2.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
3. 3.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
4. 4.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) voltmeter (c) cell (d) bulb
6. 6.Which drawing is the symbol for a diode? (a) a small empty box (b) a circle with A inside (c) triangle against a bar (d) a long and a short line
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) diode (c) LED (d) voltmeter
8. 8.Which drawing is the symbol for a wire? (a) a long and a short line (b) a circle with A inside (c) a straight line (d) a line lifted at a gap
9. 9.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) two equal parallel lines (c) a circle with A inside (d) a circle with V inside
10. 10.Which drawing is the symbol for a battery? (a) a circle with A inside (b) one tall, one short bar (c) two or more cell symbols (d) a circle with a cross
11. 11.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
12. 12.Which drawing is the symbol for a motor? (a) a circle with A inside (b) many long-short pairs (c) a long and a short line (d) a circle with M inside
13. 13.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) LED (c) capacitor (d) wire
14. 14.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) LED (c) junction (d) voltmeter
15. 15.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a straight line (c) one tall, one short bar (d) two or more cell symbols
16. 16.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
17. 17.Which drawing is the symbol for an LED? (a) a small empty box (b) two equal parallel lines (c) triangle, bar and arrows (d) a long and a short line
18. 18.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a circle with an X in it (c) triangle against a bar (d) one tall, one short bar
19. 19.Which drawing is the symbol for a capacitor? (a) a small empty box (b) a line lifted at a gap (c) a long and a short line (d) two equal parallel lines
20. 20.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a line lifted at a gap (c) triangle, bar and arrows (d) two or more cell symbols
21. 21.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
22. 22.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) cell (c) capacitor (d) bulb
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) bulb (c) voltmeter (d) motor
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) ammeter (c) capacitor (d) motor
25. 25.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
26. 26.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
27. 27.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
28. 28.True or false: a long and a short line is the symbol for a voltmeter. (a) True (b) False
29. 29.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
30. 30.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) resistor (c) LED (d) ammeter
31. 31.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a long and a short line (c) a straight line (d) a circle with V inside
32. 32.True or false: a circle with a cross is the symbol for a battery. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) battery (d) voltmeter
34. 34.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) battery (c) voltmeter (d) bulb
35. 35.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
36. 36.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
37. 37.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) motor (c) capacitor (d) LED
39. 39.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a plain rectangle (c) a circle with an X in it (d) one tall, one short bar
40. 40.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False

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