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JEE PHYSICS MCQ: CURRENT ELECTRICITY
1
Medium
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Analyzing
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In household electric circuit
I. all electric appliances drawing power are joined in parallel
II. a switch may be either in series or in parallel with the appliance which it controls III. if a switch is in parallel with an appliance, it will draw power when the switch is in the 'off' position (open)
IV. if a switch is in parallel with an appliance, the fuse will blow (burn out) when the switch is put 'on' closed.
Which of the above statements are correct?
I. all electric appliances drawing power are joined in parallel
II. a switch may be either in series or in parallel with the appliance which it controls III. if a switch is in parallel with an appliance, it will draw power when the switch is in the 'off' position (open)
IV. if a switch is in parallel with an appliance, the fuse will blow (burn out) when the switch is put 'on' closed.
Which of the above statements are correct?
View answer and explanation
Correct option: B
I, III and IV
Option D (I, II and IV) is correct. Appliances are in parallel, a switch can be in series, and a switch in parallel will cause a fuse to blow when closed.
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