P2B

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

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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