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(A) Write any two precautions to be taken to avoid electrical accidents.
(B) State how these precautions prevent possible damage to the electric circuit.
(B) State how these precautions prevent possible damage to the electric circuit.
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(A)
$\bullet$ Use fuse of appropriate rating. ($\frac{1}{2}$ Mark)
$\bullet$ There must be earth wire in circuit. ($\frac{1}{2}$ Mark)
(B)
$\bullet$ During overloading fuse melts and protect the appliances. (1 Mark)
$\bullet$ Earth wire protect us from electric shock due to leakage of current to metallic body of appliances by providing a low resistance path to earth. (1 Mark)
$\bullet$ Use fuse of appropriate rating. ($\frac{1}{2}$ Mark)
$\bullet$ There must be earth wire in circuit. ($\frac{1}{2}$ Mark)
(B)
$\bullet$ During overloading fuse melts and protect the appliances. (1 Mark)
$\bullet$ Earth wire protect us from electric shock due to leakage of current to metallic body of appliances by providing a low resistance path to earth. (1 Mark)