A) Both A and R are true and R is the correct explanation of A.
B) Both A and R are true but R is not the correct explanation of A.
C) A is true but R is false.
D) A is false but R is true.
Correct Answer: A
Solution :
Both A and (R) are correct and (R) is the correct explanation of . Strength of electromagnets can be increased as per the requirement.You need to login to perform this action.
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