Assertion (A): The Earth’s magnetic field is primarily produced by the movement of molten iron and nickel in its outer core.
Reason (R): Magnetic fields are generated only by moving charges.
1
Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2
Both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
3
Assertion is correct, but Reason is incorrect.
4
Assertion is incorrect, but Reason is correct.