UPPCS · প্রশ্ন 129
Given below are two statements, one labelled as Assertion (A) and the other as Reason (R). Assertion (A): Generally an alloy of lead and tin is used as a material of the fuse wire. Reason (R): Alloy of lead and tin has a higher melting point than copper and aluminium. Select the correct answer using the code given below.
উত্তর দেখান ও ব্যাখ্যা
উত্তর: (D) (A) is true, but (R) is false
ব্যাখ্যা
Fuse wire (tin-lead) is chosen for its low melting point so that it melts on overload; the Reason is false.