Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 477 · 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 dot where wires meet? (a) junction (b) cell (c) motor (d) wire
2. 2.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a straight line (c) a circle with V inside (d) a plain rectangle
3. 3.True or false: a circle with a cross is the symbol for an ammeter. (a) True (b) False
4. 4.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
5. 5.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) switch (c) voltmeter (d) motor
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) motor (c) resistor (d) bulb
9. 9.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
10. 10.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) many long-short pairs (c) a circle with A inside (d) a long and a short line
11. 11.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with M inside (c) a small empty box (d) a line lifted at a gap
12. 12.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) two equal parallel lines (c) a plain rectangle (d) a circle with a cross
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) cell (c) resistor (d) motor
14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) diode (c) battery (d) capacitor
15. 15.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) one tall, one short bar (c) triangle, bar and arrows (d) two equal parallel lines
16. 16.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) capacitor (c) ammeter (d) LED
17. 17.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
18. 18.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) two or more cell symbols (c) one tall, one short bar (d) two equal parallel lines
19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
20. 20.Which drawing is the symbol for a battery? (a) a circle with V inside (b) many long-short pairs (c) a circle with a cross (d) a dot where wires meet
21. 21.True or false: a straight line is the symbol for a diode. (a) False (b) True
22. 22.True or false: a small empty box is the symbol for a cell. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) voltmeter (c) junction (d) resistor
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) voltmeter (c) motor (d) wire
25. 25.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
26. 26.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) a straight line (c) a circle with A inside (d) a long and a short line
27. 27.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) resistor (c) capacitor (d) motor
28. 28.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a line lifted at a gap (c) a small empty box (d) a straight line
29. 29.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
30. 30.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) one tall, one short bar (c) a long and a short line (d) a small empty box
31. 31.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) capacitor (c) resistor (d) battery
32. 32.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) switch (c) resistor (d) capacitor
34. 34.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a circle with M inside (c) a straight line (d) a plain rectangle
35. 35.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False
36. 36.True or false: triangle against a bar is the symbol for a capacitor. (a) True (b) False
37. 37.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
38. 38.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
39. 39.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False
40. 40.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True

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