The earth wire of a cable is connected to
A. the outer metallic body of the appliance
B. the fuse of the appliance
C. the filament of the appliance
D. short circuitry of the appliance
Answer: Option A
A. the outer metallic body of the appliance
B. the fuse of the appliance
C. the filament of the appliance
D. short circuitry of the appliance
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