Physics
Related Questions
An enemy plane is at a distance of 300 km from a radar. In how much time the radar will be able to detect the plane? Take velocity of radio waves as 3 x 108 m s-1.
How is the frequency of a stretched string related to:
(i) it's length?
(ii) it's tension?
An electric bulb of resistance 500 Ω, draws a current of 0.4 A. Calculate the power of the bulb and the potential difference at it's end.
State two causes of energy loss in a transformer.