1.

Which of the following bulbs will have high resistance?(a) 220V, 60W(b) 220V,100W(c) 115V,60W(d) 115V,100 WThis question was posed to me during a job interview.My doubt is from Ohm’s Law topic in chapter Circuit Elements and Kirchhoff’s Laws of Network Theory

Answer»

The CORRECT choice is (a) 220V, 60W

Easiest explanation: Resistance is directly PROPORTIONAL to SQUARE of voltage and inversely proportional to the POWER.



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