Class VII

Every time a fuse melts, you have to
  1. change the wire only
  2. change the fuse
  3. replace the plug
  4. replace the circuit breaker
Discovery of Hans Oersted was later on used by an/a
  1. British scientist
  2. French scientist
  3. English scientist
  4. Chinese scientist
Electrons have
  1. positive charge
  2. negative charge
  3. no charge
  4. double charge
Shiny objects are often made by electroplating steel with
  1. nickel
  2. titanium
  3. chromium
  4. zinc
Ammeter is connected
  1. before the cell or battery
  2. before the bulb
  3. after the bulb
  4. anywhere
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