Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 770 · 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 switch? (a) a line lifted at a gap (b) many long-short pairs (c) a straight line (d) a circle with A inside
2. 2.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
3. 3.Which drawing is the symbol for a cell? (a) a small empty box (b) a line lifted at a gap (c) a long and a short line (d) a circle with a cross
4. 4.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a plain rectangle (c) a long and a short line (d) a circle with V inside
5. 5.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
6. 6.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
7. 7.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) capacitor (c) cell (d) diode
9. 9.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a small empty box (c) a straight line (d) a circle with an X in it
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
11. 11.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
12. 12.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
13. 13.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a line lifted at a gap (c) two or more cell symbols (d) a straight line
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) resistor (c) diode (d) junction
16. 16.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
17. 17.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) cell (c) ammeter (d) capacitor
19. 19.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) cell (c) capacitor (d) wire
20. 20.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a circle with V inside (c) a circle with a cross (d) a dot where wires meet
21. 21.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a circle with a cross (c) a circle with M inside (d) a circle with an X in it
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) junction (c) cell (d) switch
23. 23.True or false: one tall, one short bar is the symbol for a capacitor. (a) False (b) True
24. 24.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) resistor (c) bulb (d) motor
26. 26.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) bulb (c) diode (d) resistor
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) capacitor (c) resistor (d) junction
29. 29.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a circle with M inside (c) triangle against a bar (d) a straight line
30. 30.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) resistor (d) capacitor
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) motor (c) cell (d) voltmeter
33. 33.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) bulb (c) LED (d) junction
34. 34.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) ammeter (c) cell (d) wire
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) LED (c) cell (d) voltmeter
36. 36.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) two or more cell symbols (c) two equal parallel lines (d) a circle with M inside
37. 37.Which drawing is the symbol for a battery? (a) a circle with V inside (b) a dot where wires meet (c) a circle with M inside (d) two or more cell symbols
38. 38.True or false: a straight line is the symbol for a wire. (a) False (b) True
39. 39.True or false: many long-short pairs is the symbol for an LED. (a) True (b) False
40. 40.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False

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