1. If a person builds up an electric charge due to frictional action with a carp

Question

1. If a person builds up an electric charge due to frictional action with a carpet, which of the following objects, if touched, is most likely to produce a painful electric discharge? a) Wooden door b) porcelain sink c)refrigerator d) metal door knob 2. A rubber balloon possesses a positive charge. If brought near and touched to the door of a wooden cabinet, it sticks to the door. This does not occur with an uncharged balloon. These two observations can lead one to conclude that the door is which of the following? a) electrically neutral b) negatively charged c) a conductor d) lacking electrons

Explanation / Answer

1. Answer- Option (a)

A painful electric discharge will produce by an object which is best conductor of electricity. Here metal door knob is best conductor of electricity.

2. Answer- Option (b)

Poditive charged balloon will be sticks to neagtively charged wooden cabinet.

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