Electricity

Questions

(See also Mains Electricity)

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Electricity - Current - Voltage - Power
1 What is Electricity? Answer
2 What is the Difference between a Cell and a Battery? Answer
3 What is the Circuit Symbol for a Cell? Answer
4 What is the Circuit Symbol for a Battery? Answer
5 Which side of a Cell is Positive? Answer
6 Which way does Electricity Flow in Conventional Current? Answer
7 Why not use Real Current? Answer
8 What is a Coulomb a unit of? Answer
9 What is Direct Current? Answer
10 What is the Circuit Symbol for Direct Current? Answer
11 What unit is Current measured in? Answer
12 What type of meter measures Current? Answer
13 Is the meter which measures Current connected in Series or Parallel? Answer
14 Which Equation connects Charge, Current and Time? Answer
15 What does one Volt equal? Answer
16 Which Equation connects Energy, Voltage and Charge? Answer
17 What is the difference between Voltage, Potential Difference and p.d.? Answer
18 What type of meter measures Voltage? Answer
19 Is the meter which measures Voltage connected in Series or Parallel? Answer
20 What is the Circuit Symbol for an Ammeter? Answer
21 What is the Circuit Symbol for a Voltmeter? Answer
22 What is a Watt a unit of? Answer
23 What does one Watt equal? Answer
24 Which Equation connects Power, Energy and Time? Answer
25 Which Equation connects Power, Voltage and Current? Answer
26 What is the Circuit Symbol for a Lamp? Answer
27 Draw the Circuit you would use to calculate the Power of a Lamp. Answer


Electricity - Resistance
28 What is Resistance measured in? Answer
29 What is Resistance a measure of? Answer
30 Which Equation connects Resistance, Current and Voltage? Answer
31 Draw the Graph of Voltage against Current for a Resistor. Answer
32 Draw the Graph of Voltage against Current for a Light Bulb. Answer
33 Draw the Graph of Voltage against Current for a Thermistor. Answer
34 What does a Resistor do? Answer
35 What is the Circuit Symbol for a Resistor? Answer
36 What is the Circuit Symbol for a Variable Resistor? Answer
37 Draw the Circuit you would use to calculate the Resistance of a Resistor. Answer
38 What is a Component? Answer
39 Draw a Test Circuit for a Component. Answer
40 How does the Resistance of a Wire depend on its Material? Answer
41 How does the Resistance of a Wire depend on its Length? Answer
42 How does the Resistance of a Wire depend on its Thickness? Answer
43 How does the Resistance of a Wire depend on its Temperature? Answer


Electricity - Series Circuits
44 Draw a Circuit with three Resistors connected in Series. Answer
45 How does Current change for Components in a Series Circuit? Answer
46 How does Voltage change for Components in a Series Circuit? Answer
47 How do you calculate the Total Resistance for Components in a Series Circuit? Answer
48 How do you calculate the Voltage for Components in a Series Circuit? Answer
49 When More Lamps are connected in Series, do they get Dimmer or Brighter? Answer
50 If one Lamp Breaks in a Series Circuit, will the others stay on or go Out? Answer


Electricity - Parallel Circuits
51 Draw a Circuit with three Resistors connected in Parallel. Answer
52 How does Current change for Components in a Parallel Circuit? Answer
53 How do you calculate the Current in each Branch of a Parallel Circuit? Answer
54 How do you calculate the Total Current for Components in a Parallel Circuit? Answer
55 How does Voltage change for Components in a Parallel Circuit? Answer
56 How do you calculate the Total Resistance for Components in a Parallel Circuit? Answer
57 Draw a Circuit with three Lamps connected in Parallel. Answer
58 How can you Switch each Lamp On or Off without affecting the other Lamps? Answer
59 What is the Circuit Symbol for an Open Switch? Answer
60 What is the Circuit Symbol for a Closed Switch? Answer


Electricity - Diode - LDR - Thermistor
61 What does a Diode do? Answer
62 Draw the Circuit Symbol for a Diode. Answer
63 Draw the Graph of Current against Voltage for a Diode. Answer
64 What does LDR stand for? Answer
65 What is the Circuit Symbol for a LDR? Answer
66 How does Resistance change with Light Intensity for a LDR? Answer
67 Give one Use for a LDR. Answer
68 What is a Thermistor? Answer
69 What is the Circuit Symbol for a Thermistor? Answer
70 How does Resistance change with Temperature for a Thermistor? Answer
71 Give one Use for a Thermistor. Answer

 

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