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Who Wants To Be A Millionaire?

Who Wants To Be A Millionaire?. Electricity and Magnetism. Question 1. An ammeter is used for measuring. A Electrical charge B Circuit temperature C Electrical current D Potential difference. Answer. A Electrical charge B Circuit temperature C Electrical current

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Who Wants To Be A Millionaire?

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  1. Who Wants To Be A Millionaire? Electricity and Magnetism

  2. Question 1

  3. An ammeter is used for measuring A Electrical charge B Circuit temperature C Electrical current D Potential difference

  4. Answer A Electrical charge B Circuit temperature C Electrical current D Potential difference

  5. £100

  6. Question 2

  7. Brushes on an electric motor connect to the A commutator B communitarianist C communist D commentator

  8. Answer A commutator B communitarianist C communist D commentator

  9. £200

  10. Question 3

  11. Doubling the number of turns on a solenoid will A Increase the magnetic force B Increase the current C Decrease the magnetic force D Increase the voltage

  12. Answer A Increase the magnetic force B Increase the current C Decrease the magnetic force D Increase the voltage

  13. £300

  14. Question 4

  15. I kWh of electrical energy costs 5p. What is the cost of running a 10 kW oven for 5 hours? A £5 B £25 C 25p D £2.50

  16. Answer A £5 B £25 C 25p D £2.50

  17. £500

  18. Question 5

  19. A copper wire carrying an electrical current A Has no magnetic field around it B Has a magnetic field around it C Only has a north pole D Only has a south pole

  20. Answer A Has no magnetic field around it B Has a magnetic field around it C Only has a north pole D Only has a south pole

  21. £1,000

  22. Question 6

  23. Which of the following is the correct rule for electric motors? A Fleming’s right hand rule B The right hand grip C The left hand grip D Fleming’s left-hand rule

  24. Answer A Fleming’s right hand rule B The right hand grip C The left hand grip D Fleming’s left-hand rule

  25. £2,000

  26. Question 7

  27. The resistance value of two 10 Ω resistors in parallel is A 0.5 Ω B 20 Ω C 5 Ω D 2 Ω

  28. Answer A 0.5 Ω B 20 Ω C 5 Ω D 2 Ω

  29. £4,000

  30. Question 8

  31. The relationship between voltage and current in Ohm’s law is A V = I x R B R= V x I C I = V x R D V = I/R

  32. Answer A V = I x R B R= V x I C I = V x R D V = I/R

  33. £8,000

  34. Question 9

  35. Which one is wrong:‘A current in a wire is induced when’ A a wire is moved between the poles of a magnet B a coil is moved to and froacross a wire C a magnet is moved in and out of a coil Da wire moves faster and faster in a magnetic field

  36. Answer A a wire is moved between the poles of a magnet B a magnet is moved in and out of a coil C a coil is moved to and froacross a wire Da wire moves faster and faster in a magnetic field

  37. £16,000

  38. Question 10

  39. The value of the secondary voltage in a transformer is calculated using A Vs xVp =Nsx Np B Vs / Np =Ns/ Vp C Vs/ Vp = Ns/ Np D Vp x Ip =Vs x Is

  40. Answer A Vs xVp =Nsx Np B Vs / Np =Ns/ Vp C Vs/ Vp = Ns/ Np D Vp x Ip =Vs x Is

  41. £32,000

  42. Question 11

  43. High voltage AC is used to transmit electrical power because A Heat loss is inversely proportional to the current B Transformers heat up more with DC C Heat loss is proportional to the current squared D Low voltage produces more heat

  44. Answer A Heat loss is inversely proportional to the current B Transformers heat up with DC C Heat loss is proportional to the current D Low voltage produces more heat

  45. £64,000

  46. Question 12

  47. A device that relies upon eddy currents is A A generator B A metal detector C A loudspeaker D A transformer

  48. Answer A A generator B A metal detector C A loudspeaker D A transformer

  49. £125,000

  50. Question 13

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