Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test General Science Physics Current Electricity
Thin wires of which of the following metal is used for making the filament of electric bulbs?
1
Tungsten
2
Silver
3
Nichrome
4
More than one of the above
5
None of the above