Would the bulb glow in the circuit shown in fig. ?
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Would the bulb grow after completing the circuit in fig. if instead of safety pin we use an eraser ?
Using the "conduction tester” on an object it was found that the bulb begins to glow. Is that
object a conductor or an insulator? Explain.
Why should an electrician use rubber gloves while repairing an electric switch at your home
? Explain.
The handles of the tools like screw drivers and pliers used by electricians for repair work
usually have plastic rubber covers on them. Can you explain ? Why?
Answers
Answer:
there is no figure to determine your first question
using the conduction test when the bulb glows then it represents that the object on which the test is applied is a conductor.
Explanation: The flow of current enables the bulb to glow. If at all the object connecting the source of supply and the bulb is a conductor then it allows the flow of current through it hence lighting the bulb. If the object connecting the source of supply and the bulb is an insulator then it doesn't allow the flow of current through it therefore the bulb doesn't glow.
Answer:
An electrician should always use rubber gloves while repairing an electric switch is because rubber gloves act as insulators while dealing with conducting switches. There is always a slight chance that some residue current or faulty current are present in the switches hence to safeguard one from these we must always wear rubber gloves while working on electrical switches.
Answer:
The handles of equipment used by electrician always have rubber covers over it. This is because the electricians constantly work with electric current. If these rubber covers aren't present on the handles o the equipment then the chances of the electrician being electrocuted is always high. Hence for safety purposes the handles of these equipment are covered by rubber