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Magnetic Effects of Electric Current — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceMagnetic Effects of Electric Current1 Mark
Question
In the followin questions, a statement of Assertion is given by to corresponding statement of Reason. Of the statement mark the correct answer as:
  1. If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  2. If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
  3. If Assertion is true, but Reason is false.
  4. If Assertion is false, but Reason is true.
  5. If Assertion and Reason both are false.
Assertion: An electric current produced in a closed circuit by changing magnetic field is called induced current.
Reason: The direction of induced current is given by Fleming's right hand rule.
✓

Answer

  1. If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.

Explanation:

The phenomenon of generation of an electric current in a closed circuit from magnetic effects 1.e., by changing the magnetic field is called electromagnetic induction. The potential difference set in the circuit due to induced current is called induced emf.

It can be used to determine the direction of current in a generator's windings. When a conductor such as a wire attached to a circuit moves through a magnetic field, an electric current is induced in the wire due to Faraday's law of induction. Fleming's right-hand rule gives which direction the current flows.

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