Electricity for AS and A-Level

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  • Created by: Perlin
  • Created on: 11-12-13 23:25

1. If two resistors are connected in series, the total resistance is 25 Ohms. If they are connected in parallel, it goes down to 6 Ohms. The possible values of the resistances in Ohms are

  • 60 and 15
  • 30 and 30
  • 15 and 10
  • 20 and 40
1 of 15

Other questions in this quiz

2. When resistors are in parallel, the total resistance is

  • the same as the sum of each resistance
  • less than the smallest resistance in the circuit
  • the same as the highest resistance
  • nothing is correct

3. The ratings of a bulb is 60 W, 240 V. Its resistance in Ohms is

  • 60
  • 240
  • 960
  • 480

4. An earth wire is needed for an electrical equipment with

  • none is correct
  • plastic casing
  • metal casing
  • any casing

5. A switch is normally connected across

  • the live wire
  • the neutral wire
  • either of them
  • none is correct

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