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Electric Circuits
Five bulbs,each rated as 220v 100 watt burnt for 4 hours.What is the cost of electricity consumed if the rate is 50 paise per unit?
Electric Circuits
Two flat circular coils,X having a radius 5 cm and turns, Y having radius 10 cm and 4 turns are situated in a uniform magnetic field for which the field is changing at a constant rate.The ratio of emf induced in X to the emf induced in Y will be?
Electric Circuits
Two bulbs A and B are rated 100 W - 120 W and 10W - 120V respectively.they are connected across a 120V source in series.which will consume more energy?
Electric Circuits
a parallel combination of three resistors takes a current of 7.5A from 30 V supply.if the two resistors are 10 ohm and 12 ohm, find the third one.
Electric Circuits
what does the term phosphorescence mean.
Electric Circuits
what are the majar components of CRT
Electric Circuits
why does a mic create that shrill sound sometimes that is unbearable???
Electric Circuits
what happen when we throw a iron stick with the speed of light in the height?
Electric Circuits
A metal wire of resistivity 64x 10-6 ohm cm and length 198cm has resistance of 7 ohm. Calculate its radius.
Electric Circuits
when will you give answer
