P2B

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P R A L T E R N A T I N G C U R R E N T X
S W C K B R W O C H E A P E R M E K U D T
C M R W N X G Y P B M R F A W D L V V C V
I X O R D W W G U C M W H O D U E V M O V
V Y T D U D Q V Q E L D L L P S C L J N A
A Y A I Q V V M P D Q L H J F V T N D L T
F K L F R G D P A Q E T W N O L R E C D H
M M U T J W U U R Y E D V N G R I I H R B
L Q S C W S R R D L I I V E C J C J Y B Q
E B N M F Y N N B H D R P M R X I E Q W H
R B I Y U X A A O R B E W R F V T V M A O
I H V S L N E V O F D C K E I Q Y R F U T
V O A T E S I H H R B T W M U R S C L X A
T M R E U N L B K J N C V S M P U V M A S
B U R E Q P P L K N U U H T J K P Q I J Y
R G R S A U E G P J X R X L H Y P Q H N D
W I K F E C N B L U E R M E B O L R T N S
B X K K C Y K I D E K E D M R Y I L E J R
J I H D D C A B R O W N H A O K E K L S W
M D J F Y J L X F Q D T B O Q I S K I F O
G L H P H E W G W R Y F S N W L K A B R Y

Clues

  • An oscilloscope measures... (11, 8)
  • Battery electricity is... (6, 7)
  • Earth wire is... (5, 3, 6)
  • Live wire is... (5)
  • Mains electricity is... (11, 7)
  • Neutral wire is... (4)
  • What does the fuse do if the current is to large? (5)
  • Why are circuit breakers better than fuses? (9)
  • Why are fuses better than circuit breakers? (7)
  • Why are the wires in a plug encased in plastic? (9)

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