P2B

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

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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