Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 493 · 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 an ammeter? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a circle with V inside (d) a circle with A inside
2. 2.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) ammeter (c) LED (d) resistor
3. 3.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) capacitor (c) switch (d) diode
4. 4.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) wire (c) cell (d) capacitor
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
7. 7.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a plain rectangle (c) a circle with M inside (d) one tall, one short bar
8. 8.True or false: a line lifted at a gap is the symbol for a motor. (a) False (b) True
9. 9.True or false: two or more cell symbols is the symbol for an LED. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) wire (c) LED (d) cell
11. 11.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
12. 12.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
13. 13.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a circle with M inside (c) a straight line (d) a circle with V inside
14. 14.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) battery (c) cell (d) resistor
16. 16.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
17. 17.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) a small empty box (c) a circle with A inside (d) two equal parallel lines
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) ammeter (c) motor (d) bulb
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) bulb (c) motor (d) resistor
20. 20.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) capacitor (c) motor (d) resistor
21. 21.Which drawing is the symbol for a switch? (a) triangle against a bar (b) triangle, bar and arrows (c) two or more cell symbols (d) a line lifted at a gap
22. 22.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
23. 23.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a circle with a cross (c) a dot where wires meet (d) a long and a short line
24. 24.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
25. 25.True or false: a line lifted at a gap is the symbol for a resistor. (a) True (b) False
26. 26.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with an X in it (c) triangle, bar and arrows (d) a circle with a cross
27. 27.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
28. 28.Which drawing is the symbol for a diode? (a) a circle with a cross (b) a circle with M inside (c) triangle, bar and arrows (d) triangle against a bar
29. 29.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
30. 30.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
31. 31.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) resistor (c) battery (d) cell
33. 33.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a circle with V inside (c) a circle with M inside (d) a small empty box
34. 34.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a dot where wires meet (c) a circle with a cross (d) triangle against a bar
35. 35.True or false: a circle with A inside is the symbol for a battery. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) cell (c) ammeter (d) battery
37. 37.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
38. 38.True or false: a straight line is the symbol for a wire. (a) False (b) True
39. 39.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) resistor (c) battery (d) switch

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