Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 580 · 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 motor? (a) a circle with V inside (b) triangle, bar and arrows (c) a circle with M inside (d) a plain rectangle
2. 2.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) a line lifted at a gap (c) a circle with V inside (d) triangle, bar and arrows
3. 3.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
4. 4.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) ammeter (c) capacitor (d) LED
6. 6.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
9. 9.True or false: a circle with a cross is the symbol for a cell. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) resistor (c) junction (d) ammeter
11. 11.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) junction (c) voltmeter (d) resistor
12. 12.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) diode (c) cell (d) battery
13. 13.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with V inside (c) a circle with an X in it (d) one tall, one short bar
14. 14.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) two equal parallel lines (c) a circle with an X in it (d) a line lifted at a gap
15. 15.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) two or more cell symbols (c) a small empty box (d) one tall, one short bar
16. 16.True or false: a plain rectangle is the symbol for a motor. (a) True (b) False
17. 17.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) capacitor (c) diode (d) switch
19. 19.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) a circle with M inside (c) a circle with A inside (d) a circle with an X in it
20. 20.✏️ 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
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) motor (c) switch (d) voltmeter
22. 22.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
23. 23.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
24. 24.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a long and a short line (c) a circle with V inside (d) a small empty box
25. 25.True or false: a circle with a cross is the symbol for a battery. (a) False (b) True
26. 26.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
27. 27.True or false: triangle against a bar is the symbol for a junction. (a) False (b) True
28. 28.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a dot where wires meet (c) a circle with a cross (d) a straight line
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) cell (c) voltmeter (d) ammeter
30. 30.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) motor (c) cell (d) switch
31. 31.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
32. 32.Which drawing is the symbol for a bulb? (a) a small empty box (b) a line lifted at a gap (c) a circle with an X in it (d) triangle against a bar
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) bulb (c) junction (d) diode
34. 34.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) resistor (c) ammeter (d) voltmeter
35. 35.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) switch (c) junction (d) motor
36. 36.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
37. 37.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) cell (c) bulb (d) wire
39. 39.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a plain rectangle (c) a circle with A inside (d) two or more cell symbols
40. 40.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True

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