Other questions in this quiz

2. What makes LEDs so efficient?

  • Small current needed
  • No battery required, cheaper
  • Current only goes in one direction
  • No resistance

3. What is the symbol for an LDR?

  • Box with a circle round it and two arrows pointing in
  • A box with an arrow going though it up to the right
  • Play button with two arrows going out on right
  • A box with a hockey stick across it

4. Where is a voltmeter in a circuit?

  • Anywhere, p.d is always the same
  • Parallel
  • At the start, to measure the original value
  • Series

5. Varying the variable resistor alters the..

  • Voltage
  • Current
  • Resistance
  • light emitted


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