Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Electric Charges and Fields

Question:

Case: Read the passage and answer the following questions

Historically the credit for the discovery of the fact that amber rubbed with wool or silk cloth attracts light objects goes to Thales of Miletus, Greece, around 600 BC. The name electricity is coined from the Greek word ‘electron’ meaning amber. Many such pairs of materials were known which on rubbing could attract light objects like straw, pith balls and bits of paper. For example, cut out long thin strips of white paper and lightly iron them. Take them near a TV screen or computer monitor. We can see that the strips get attracted to the screen. In fact, they remain stuck to the screen for a while.

Which of the following statements are true?

Statement 1 : Same charges repels each other.

Statement 2 : Two negative charges don’t repel each other.

Options:

Both statements are true

Statement 1 is true but Statement 2 is false.

Both statements are false.

Statement 1 is false but 2 is true.

Correct Answer:

Statement 1 is true but Statement 2 is false.

Explanation:

The basic property of charges is that the same charges repel each other. The first statement itself negates the second one.