A light bulb is rated 100W for 220 V AC supply of 50 Hz. Calculate (a) resistance of the bulb. (b) the rms current through the bulb.
the given can be listed as Power P = 100W To Find , Resistance R = ? …
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A big dumb-bell is prepared by using a uniform rod of mass 60 g and length 20 cm. Two identical solid thermocol spheres of mass 25 g and radius 10 cm each are at the two ends of the rod. Calculate moment of inertia of the dumb bell when rotated about an axis passing through its centre and perpendicular to the length.
As per the given condition we can list out the data as mass of rod = M= 60g length of…
How much work is required to form a bubble of 2 cm radius from the soap solution having surface tension 0.07 N/m.
After going through the question, we observe some data as , initial radius = 0cm fina…
Explain formation of clouds at high altitude
Cloud development at high elevations essentially happens through an interaction known …
Doors of a dam are 20m below the surface of water in the dam. If one door is opened what will be the speed of the water that flows out of the door ?
The given can be listed as, h= 20m g = 9.8m/s² To find, v = ? Solution -��…
HSC Result 2026
The result of HSC will be declared on 2nd May 2026 at 11am. It can be che…