Tag: transfer of charges

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Questions Related to transfer of charges

Multiple choice physics some natural phenomena types of charges and their interaction transfer of charges charging and discharging transfer of charge

Rub a glass tumbler with wool. Bring an inflated charged balloon, rubbed with wool, near refill. Then

  1. both balloon and tumbler will repel each other.

  2. both balloon and tumbler attract each other.

  3. no reaction will be observed.

  4. the balloon will burst.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When rubbed by wool, glass becomes positive and rubber becomes negative. Opposite charges attract. So, the balloon and the glass tumbler will attract each other.

Multiple choice physics some natural phenomena transfer of charge types of charges and their interaction transfer of charges

What happens when the end of the paper clip of electroscope is touched by hands?

  1. Electric current is produced 

  2. Foil strips remain as it is

  3. Foil strips collapse

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Because the charges on foil strips gets discharge through air body as soon as paper clip of electroscope is touched by hand, the foil strips collapse.

Multiple choice physics some natural phenomena transfer of charge types of charges and their interaction transfer of charges

Opening up of strips of an electroscope is an indication of:

  1. proximity of a conductor.

  2. proximity of a charged body.

  3. proximity of an uncharged body.

  4. earth connection.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When a charged body comes close to an electroscope, charges are induced to the electroscope. These charges flow down to the metal strips which open up due to repulsion for having similar charges.

Multiple choice physics some natural phenomena transfer of charge types of charges and their interaction transfer of charges

When a charged body is brought near an electroscope:

  1. the strips of foils opens up.

  2. the strips of foils close.

  3. the strips open and close simultaneously.

  4. the strips neither open nor close.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When a charged body is brought near the top conducting disc of an electroscope, the disc gets induced with charges. These charges run down to the metal strips hanging from the paper clip. Now as both the strips get similar charge, those repel each other and thus open up.

Multiple choice physics some natural phenomena transfer of charge types of charges and their interaction transfer of charges

In the process of earthing, how does charges get discharged to Earth?

  1. Through some conductor

  2. Directly to the Earth

  3. Through transformer

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

Earthing is important for the protection of human life as well as property. For discharging of charges to the Earth some conductor is required, so that electric charges gets conducted into the Earth.

Multiple choice physics some natural phenomena transfer of charge types of charges and their interaction transfer of charges

What will be the nature of charge on the metal paper clip of electroscope when a negatively charged body is brought in contact with it?

  1. Positive

  2. Negative

  3. Partially positive

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

The nature of charge will be negative. Here charging is taking place due to contact and metal paper clip will bear the same charge as the charged body. This is charging by conduction.