The correct answer is (B) Tungsten.
The material most suitable for making the filament of an incandescent bulb is tungsten, because of its unique physical and chemical properties:
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90 Mins English English100 Questions100 Marks90 Mins English English40 Questions30 Marks25 Mins EnglishIf the length of a conductor is tripled, keeping other factors same, the resistance of the conductor will be:
Which of the following solutions do NOT conduct electricity?
A material of length L and area of cross section has a resistance R . What should be changes in the area of cross section A if its length is tripled to produce the same resistance ?
The shape of the voltage-current graph for a conductor is ___________.
Why are carbon compounds bad conductors of electricity?
The resistance of a metal wire of length 1 m is 50 at 30 °C. Suppose the diameter of the wire is 0.3 mm. Now another wire has the same material and the same length (at 30 °C), but the diameter is increased to 0.6 mm. The resistance of the new wire is:
Consider a wire of resistance 10 Ω If there is another wire of the same material and the same length as the previous one.
but the cross - sectional area is double, then the resistance of the new wire is:
Which of the following quantities affects the electrical resistivity of a given metallic wire?
The most essential difference between a DC and an AC generator is
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