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Current Electricity — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsCurrent Electricity1 Mark
Question
For two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.
  1. Both A and R are true, and R is the correct explanation of A.
  2. Both A and R are true, but R is not the correct explanation of A.
  3. A is true, but R is false.
  4. A is false, and R is also false.
Assertion: Insulator do not allow flow of current through them.
Reason: Insulator have no free charge carrier.
✓

Answer

  1. Both A and R are true, and R is the correct explanation of A.

Explanation:

Since current arises due to continuous flow of charged particles. There is no free charge in insulator hence no flow of charges are possible. Therefore current do not ftow through insulators.

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