RRB ALP 2013 પ્રશ્ન 28
પ્રશ્ન: બલ્બનું તારું (ફિલામેન્ટ) શેમાંથી બનેલું હોય છે:
વિકલ્પો:
A) ટંગસ્ટન
B) આયર્ન
C) નિક્રોમ
D) કાર્બન
Show Answer
જવાબ:
સાચો જવાબ: A
BETA
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