Question

Assertion $\left(A\right)$ : Electromagnets are made of soft iron.

Reason $\left(R\right)$ : Coerctivity of soft iron is small.

• A. Both $\left(A\right)$ and $\left(R\right)$ are true, $\left(R\right)$ is the correct explanation of $\left(A\right)$
• B. Both $\left(A\right)$ and $\left(R\right)$ are true, $\left(R\right)$ is not the correct explanation of $\left(A\right)$
• C. $\left(A\right)$ is true but $\left(R\right)$ is false.
• D. $\left(A\right)$ is false but $\left(R\right)$ is true.

Answer 1

The correct option is A Both $\left(A\right)$ and $\left(R\right)$ are true, $\left(R\right)$ is the correct explanation of $\left(A\right)$

The soft iron is preferred in making electromagnets because of its low coercivity and high retentivity.

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Hence, $\left(A\right)$ is the correct answer.