Electronic circuit and field

123456
Across
  1. 2. a measuring instrument used to measure the current in a circuit
  2. 5. an electrical insulator that can be polarised by an applied electric field
  3. 6. difference in electric potential between two points
Down
  1. 1. opposition to the current flow KEY!!!
  2. 3. a stream of charged particles
  3. 4. a device that is capable of converting non-electrical energy into electrical energy