SELECT * FROM question_mgmt as q WHERE id=4359 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=12 AND subId=16 AND chapterId=366 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 8th science Synthetic Fibres and Plastics describe an activity to show that thermoplastic is

Question:

Describe an activity to show that thermoplastic is a poor conductor of electricity.

Answer:

With the help of an activity, we can see that thermoplastic are poor conductor of electricity.

Requirements: Bulb, some wires, battery, a piece of metal, plastic pipe.

Procedure:

  • Set up the first circuit with the help of metal and with the plastic pipe.
  • Now, switch on the current. Here you observed that the bulb will glow in the first case.
  • In later case, the bulb will no glow. It shows that the plastic pipe is the poor conductor of electricity.

  metal


SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='12' AND subId='16' AND ex_no!=0 AND status=1 and id!=4359 ORDER BY views desc, last_viewed_on desc limit 0,10
SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='12' AND subId='16' AND ex_no!=0 AND status=1 and id!=4359 ORDER BY last_viewed_on desc limit 0,10

Comments

  • Answered by Ekta Mehta
  • 4 months ago

Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.


  • Answered by Ekta Mehta
  • 4 months ago

Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.


  • Answered by Ekta Mehta
  • 4 months ago

Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.


Comment(s) on this Question