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pick up any revision notes and revise , keep on revising until sleep overpowers youGuys need help.... I have only done mcq's from past papers and now i even don't have time to do theory ... Alhamdulillah my concept are clear but tell me or give any suggestion what to do to prepare theory........(PHYSICS)
Thanks for the help... Appreciated...
Thanks for the suggestions....pick up any revision notes and revise , keep on revising until sleep overpowers you
WelcomeThanks for the help... Appreciated...
B.O.L
tHe Answer is D right?This is because if the lamp uses 1kWh of energy it works for=1000/100=10 hrs.Since both are combined, heater is used for 2x10=20kWh
Sorry, but your explanation is wrong, i guess. This has nothing to do with the temperature. The earth wire which is connected to the metal case diverts the current to the earth, and none goes to neutral wire. The earth wire has almost ZERO resistance (no component connected) so current becomes VERY large, immediately blowing the fuse!
welcomeYa, thanks alot
sin 40 / sin 63
sin63/sin40
Wouldn't it be the reciprocal of it?
that is wrong :|
refractive index can never be zero.
Yes, it is wrong in past paper it is. Sin63/sin40 .... But shouldn't 40 be the angle of incidence...
U can also use another method to solve this question:
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