Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 593 · 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 junction? (a) two or more cell symbols (b) a straight line (c) a line lifted at a gap (d) a dot where wires meet
2. 2.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
3. 3.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) triangle against a bar (c) a line lifted at a gap (d) a straight line
4. 4.True or false: two equal parallel lines is the symbol for a resistor. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) resistor (c) LED (d) capacitor
6. 6.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) switch (c) diode (d) wire
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
8. 8.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
10. 10.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a circle with A inside (c) triangle, bar and arrows (d) one tall, one short bar
11. 11.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
12. 12.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) two or more cell symbols (c) a long and a short line (d) a circle with M inside
13. 13.Which drawing is the symbol for an LED? (a) many long-short pairs (b) triangle, bar and arrows (c) a circle with A inside (d) a circle with a cross
14. 14.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with a cross (c) a long and a short line (d) two equal parallel lines
15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) junction (c) ammeter (d) resistor
16. 16.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) bulb (c) diode (d) LED
17. 17.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) cell (c) junction (d) diode
18. 18.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
19. 19.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) two equal parallel lines (c) one tall, one short bar (d) a circle with V inside
20. 20.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) cell (c) battery (d) wire
22. 22.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
23. 23.True or false: triangle against a bar is the symbol for a capacitor. (a) True (b) False
24. 24.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
25. 25.Which drawing is the symbol for a cell? (a) a circle with M inside (b) triangle, bar and arrows (c) a small empty box (d) a long and a short line
26. 26.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
27. 27.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) two or more cell symbols (c) a long and a short line (d) a circle with an X in it
28. 28.True or false: many long-short pairs is the symbol for a wire. (a) True (b) False
29. 29.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
30. 30.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) voltmeter (c) capacitor (d) motor
32. 32.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a circle with an X in it (c) one tall, one short bar (d) two or more cell symbols
33. 33.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) resistor (d) junction
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) junction (c) bulb (d) cell
36. 36.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a line lifted at a gap (c) triangle against a bar (d) a small empty box
37. 37.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a circle with M inside (c) a small empty box (d) a line lifted at a gap
38. 38.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
39. 39.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
40. 40.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True

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