P2B

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

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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