A glass rod rubbed with silk is touched with the disc of a negatively charged gold leaf electroscope. The divergence of leaves will
- ✓decrease
- Bincrease
- Cremain unchanged
- Dfirst decrease and than increase
Answer: A.
View full solution →Question types
Electricity question types
144 questions across 7 question groups — pick any mix to generate a PHYSICS paper with step-by-step answer keys.
144
Questions
7
Question groups
5
Question types
01
MCQ
20 Q→02[1 Mark Question Answer]
22 Q→03[2 Mark Question Answer]
26 Q→04[3 Mark Question Answer]
19 Q→05[5 Mark Question Answer]
15 Q→06fill in the blanks.
12 Q→07TRUE / FALSE
30 Q→Sample Questions
Electricity questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
The lightning conductor is made up of:
- ✓copper
- Bglass
- Cebonite
- Dwood
Answer: A.
View full solution →The rod in a gold leaf electroscope is made up of
- Awood
- ✓brass
- Cglass
- Debonite
Answer: B.
View full solution →A gold$-$leaf electroscope is to be charged positively by conduction. For this
- Aa positively charged rod is held close to near the disc of electroscope
- ✓a positively charged rod is placed in contact with the disc of electroscope
- Ca negatively charged rod is held near the disc of electroscope
- Da negatively charged rod is touched with the disc of electroscope.
Answer: B.
View full solution →The conductor of electricity is
- Awood
- Bglass
- Cebonite
- ✓human body
Answer: D.
View full solution →What are the two kinds of charges?
Name two substances which can be charged by friction.
When a charged rod is touched with the disc of a positively charged gold-leaf electroscope, it is observed that the divergence of leaves decreases. What is the kind of charge on the rod?
A negatively charged ebonite rod is touched with the disc of a negatively charged gold leaf electroscope. What will be your observation?
Who discovered the way of producing electricity by friction?
An ebonite rod is rubbed with fur. State the kind of-charge acquired by each.
What are the effects of lightning?
A positively charged glass rod is touched with the disc of an uncharged gold leaf electroscope. What will be your observation?
How will you use a pith ball electroscope to find out whether the charge on a charged body is positive or negative?
A metal rod $A$ is to be charged positively by using another charged rod $B$. What should be the kind of charge on the rod $B$ if charging is to be done by conduction?
View full solution →A glass rod is rubbed with silk. State the kind of charge acquired by each.
State three safety measures that you will observe in thunder storm.
How is a tall building protected from damage due to lightning?
What is a lightning conductor? How does it work?
What causes lightning?
How will you show that like charges repel and unlike charges attract each other?
Describe an experiment to demonstrate that there are two $r$ kinds of charges.
View full solution →How will you use a gold leaf electroscope to find out whether the charge on a charged body is positive or negative?
Draw a labelled diagram of a gold leaf electroscope and describe its construction.
Figure below shows a metal rod $AB$ placed on an insulating stand. In figure $(a)$ a negatively charged ebonite rod $C$ is touched with the metal rod $AB$, while in figure $(b)$, the negatively charged ebonite rod $C$ is held near the rod $AB$. State the kind of charges at the ends $A$ and $B$ of the rod, in each case.
View full solution →Charge is shared in charging a conductor by the method of $.........$
View full solution →When an uncharged conductor is brought in contact with the disc of a gold leaf electroscope, its leaves $.........$
View full solution →An ebonite rod when rubbed with fur acquires the $.........$ charge.
View full solution →Mercury is a $.........$ of electricity while pure water is $.........$ of electricity.
View full solution →Like charges $.........$ while unlike charges attract.
View full solution →When a comb is rubbed with dry hair both comb and paper get similarly charged.
If a negatively charged rod is brought near a negatively charged pith ball electroscope, the pith ball will be stuck with the rod.
To find whether the charge on a body is positive or negative, an uncharged electroscope is used.
To find whether a body is charged or not, an uncharged electroscope is used.
An ebonite rod can be charged by touching it with a charged copper rod.
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