Electronics Worksheet: Circuit Symbols

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

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