Tag: conductors and insulators

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Questions Related to conductors and insulators

Multiple choice physics electric charges and fields conductors and insulators introduction to electrostatics electricity

Most solid materials are classified as insulators why?

  1. They offer large resistance to the flow of electric current

  2. They doesnt do anything

  3. They offer large force to other particles

  4. None
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Most solid materials are classified as insulators because they offer large resistance to the flow of electric current. because they do not have free electrons.


Option A is correct.

Multiple choice physics electric charges and fields conductors and insulators introduction to electrostatics electricity

From below which of them are used in electrostatic experiments and demonstrations?

  1. Conductors

  2. Insulators

  3. Semi Conductors

  4. None
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Insulators are the materials that do not allow free flow of electrons from atom to atom and molecule to molecule. Subsequently charge is seldom distributed evenly across the surface of an insulator while, insulators are not used for transferring a charge, they do serve a critical role in electrostatic experiments and demonstrations.

Multiple choice physics electric charges and fields conductors and insulators introduction to electrostatics electricity

Lightning wants to get to ground. It will follow the path(s) of                 to do so.

  1. most impedance

  2. least impedance

  3. least distance

  4. least inductance
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Lightening gets to the ground if the charges flow from lightening to the ground. It happens when these charges follow a path of least impedance. 

Multiple choice physics electric charges and fields conductors and insulators introduction to electrostatics electricity

During discharging of a charged glass rod via earthing, the connecting material can be

  1. another glass rod

  2. a conducting wire

  3. fur

  4. an ebonite rod
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

During discharging of a charged glass rod via earthing the connecting material should be such that it allows charge to flow through them easily. Such a material is a conductor. So, the connecting material can be a conducting wire. 

Multiple choice physics electric charges and fields conductors and insulators introduction to electrostatics electricity

A charged glass rod will get discharged on

  1. connecting it to the earth

  2. connecting it to another glass rod

  3. breaking the ends of the rod

  4. Any of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A charged glass rod can be discharged by connecting it to the ground (i.e, earthing it) via a conducting wire. In this way, charge from glass rod will flow to the ground via the conducting wire.