In an household electric circuit, which of the following is/are correct?(A) All electric appliances drawing power are joined in parallel(B) A switch may be either in series or in parallel with the appliance which it controls(C) If a switch is in parallel with an appliance, it will draw power when the switch is in the ‘off’ position (open)(D) If a switch is in parallel with an appliance, the fuse will blow (burn out) when the switch is put ‘on’ closed.(a) A, D(b) A, C, D(c) B, C, D(d) A, B, D
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option(a) A ..They are joined in parallel
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For the household electrical wiring system,the parallel electrical wiring is the most suitable one,due to it's safety measures and electricial conductive efficiency.
That's why the option A mentioned in the question is completely true.
Similarly,for the switch installations for the household electrical appliances,we can use both series and parallel for the circuit board.
That's why the option B mentioned in the question is completely true.
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