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---------is electric insulate
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تصحيح
Why water isn’t used to put out electric fire?
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As it’s good heat conducto r
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As it’s bad heat conducto r
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As it’s good electric conducto r
تصحيح
------is one of the dangerous of electricity that occur due to passing the electric current through the human body
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-------- happens when a purb of your body touches machine that generate heat
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The harms of the electric shock depends on --------
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The strength of the electric current
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The time of the electric current
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Electric shock occur when ---------
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A part of your body touch insulated wire that has an electric current & the other part
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You touch two insulated wires that have electric current
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Part of body touches a non insulated wire & the other part touches the ground
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------- used in operating some machines such as radio , t v ,… …
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Spiral base has --------to connect the lamp to the electric current
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Why the filament is don’t melt at high temperature?
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As its connected with copper wire
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As it is connected with lead wire
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As it is made of tungsten
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---------protect the filament life time
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