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Who Wants To Be A Millionaire? X’s Edition Question 1 What unit is resistance measured in? A B C D Gnomes Apples Ohms Bones Stones What is resistance measured in? A B C D Apple Ohms Bones Stones £100 Question 2 What instrument do we use to measure voltage? A B C D A metre stick Your pals fingers A voltmeter An Ammeter What instrument do we use to measure voltage? A B C D A metre stick Your pals fingers A voltmeter An Ammeter £200 Question 3 And how can we measure current? A B C D An Ammeter An Ohmmeter A Voltmeter The 100 metre sprint And how can we measure current? A B C D An Ammeter An Ohmmeter A Voltmeter The 100 metre sprint £300 Question 4 In a circuit if the Resistance is increased what happens to the current? A B C D Increases Decreases Stays the same No relationship If the Resistance is increased what happens to the Current? A B C D Increases Decreases Stays the same No relationship £500 Question 5 What is the formula that relates Energy, Power and Time? A B C D E=P/t E=PxtxR E=t/P E = Pxt What is the formula that relates Energy, Power and Time? A B C D E=P/t E = Pxt / t E=t/P E = Pxt £1,000 Question 6 How many joules are there in a kilowatt-hour? A B C D 1000 x (60x60) 1000 x 60 60 x (1000 / 60) 1000 / (60x60) How many joules are there in a kilowatt-hour? A B C D 1000 x (60x60) 1000 x 60 60 x (1000 / 60) 1000 / (60x60) £2,000 Question 7 Which one of these is NOT a practical use of the magnetic effect of current? A B C D Motor Relay Heater Bell Which one of these is NOT a practical use of the magnetic effect of current? A B C D Motor Relay Heater Bell £4,000 Question 8 What is the relationship between Power, Voltage and Current? A B C D V=IR V=IP P=IR P=IV What is the relationship between Power, Voltage and Current? A B C D V=IR V=IP P=IR P=IV £8,000 Question 9 What are the colours for Live, Neutral and Earth in a 3 pin plug? A Brown, Blue, Yellow/Green B Blue, Brown, Yellow/Green C Black, Red, Green D Blue, Red, Yellow What are the colours for Live, Neutral and Earth in a 3 pin plug? A Brown, Blue, Yellow/Green B Blue, Brown, Yellow/Green C Black, Red, Green D Blue, Red, Yellow £16,000 Question 10 What is the purpose of the earth wire? A Carry current back to supply B Carry current to ground C Send current to live D Send current to neutral What is the purpose of the earth wire? A Carry current back to supply B Carry current to ground C Send current to live D Send current to neutral £32,000 Question 11 What is the Power from a device drawing 3A with a Resistance of 100 ohms? A B C D 300 Watts 900 Watts 900 Joules 300 Joules What is the Power from a device drawing 3A with a Resistance of 100 ohms? A B C D 300 Watts 900 Watts 900 Joules 300 Joules £64,000 Question 12 To reverse the direction of a motor we reverse the: A B C D The Commutator The Carbon Brushes The Current or Field The Field Coil To reverse the direction of a motor we reverse the: A B C D The Commutator The Carbon Brushes The Current or Field The Field Coil £125,000 Question 13 Which of these appliances has the lowest power rating? A B C D Electric Cooker Hair Dryer Curling Tongs Electric Razor Which of these appliances has the lowest power rating? A B C D Electric Cooker Hair Dryer Curling Tongs Electric Razor £250,000 Question 14 4 Bulbs connected in Parallel with a R of 11, 12, 13 and 14 ohms each Calculate their Total R ? A B C D 3 ohms 4 ohms 51 ohms 52 ohms 4 Bulbs connected in Parallel with a R of 11, 12, 13 and 14 ohms each Calculate their Total R ? A B C D 3 ohms 4 ohms 51 ohms 52 ohms £500,000 Question 15 In motors which component reverses the current every half turn? A B C D Rotating Coil Field Coils Split ring Commutator Graphite Brushes In motors which component reverses the current every half turn? A B C D Rotating Coil Field Coils Split ring Commutator Graphite Brushes £1,000,000