Which of the following is correct regarding charging of an electroscope? A. charging by induction results...

Which of the following is correct regarding charging of an electroscope?

A. charging by induction results in the electroscope having the same type of charge as the charging rod.

B. Charging an electroscope by conduction results in the electroscope having the same type of charge as the charging rod.

C. A neutral electroscope can be used to identify the type of charge on a charged rod.

D. If a positively charged electroscope is approached by a negatively charged rod, the foils open up more.

Expert Solution

in Electroscopic charge a body acquire a charge of opposite sign without losing any of its own charges when another charged body is brought very close to it but not really in physical touch to each other.

the method of charging an electroscope starts with the a rod which might be positively or negatively charged and

metal sphere which is initially neutral. so when the charged rod( which may be assumed to a positively charged) is brought near to the sphere , the neutral sphere's then then sphere gets oppositely charged due to the influence of positively charged rod by induction , the initially neutral metal sphere gets negatively charged as positively charged repel away from the sphere .

so ,a body acquire a charge of opposite sign without losing any of its own charges when another charged body is brought very close to it.

from the options provided above.

A) gets eliminated since its given induction results in the electroscope having the same type of charge as the charging rod. which is not true.

again option B) Charging an electroscope having the same type of charge as the charging rod. is also False as electroscope gets oppositely charged .

so, the correct option is :

D) If a positively charged electroscope is approached by a negatively charged rod, the foils open up more.

genius_generous answered 2 years ago

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