A teacher has two identical plastic pens. They are both rubbed with identical cloths. The first pen is balanced on an insulated support.
The balanced pen rotates when the cloth or the second pen are held near it. Explain why.
Answers
Answered by
0
Answer:
electrostatic. force
Explanation:
due to electrostatic force there is force of attraction between them through which when first pen is balanced then cloth started attracting it
Answered by
0
Explanation:
Let x kg rice can be purchased in Rs 3680
Cost (Rs)
1120
3680
Rice in kg
7 x
Since, it is a case of direct varation
⇒
7
1120
=
x
3680
⇒x=
1120
3680×7
=23 kg of rice.
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