A fuse wire must be
A. conducting and of low melting point
B. conducting and of high melting point
C. insulator and of high melting point
D. insulator and of low melting point
Answer: Option A
A. conducting and of low melting point
B. conducting and of high melting point
C. insulator and of high melting point
D. insulator and of low melting point
Answer: Option A
What will be the total resistance of the three 20-Ω coils connected in series?
A. 40 Ω
B. 20 Ω
C. 60 Ω
D. 800 Ω
Superconductors are substances which
A. conduct electricity at lower temperature
B. offer high resistance to the flow of current
C. offer not resistance to the flow of current
D. conduct electricity at high temperature
Join The Discussion