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Two resistors are connected in series across an 18V supply and a current of 5A ?ows.
If one of the resistors has a value of 2.4Ω determine
(a) the value of the other resistor and
(b) the p.d. across the 2.4 Ω resistor.
a) Explain what is meant by the term "Heat Energy" b) An Aluminium bar 0.5m long, initially at 20° C is heated until its temperature rises by 50 0 C. Determine the change in l
By what factor would the I 2 R loss in transmission wires be reduced if the transmission voltage were boosted from 220 V to 22 kV? Suppose that the rate of energy delivered is
Joule's laws (J.P. Joule) Joule's first law The heat Q generated while a current I pass through a resistance R for a particular time t is given by following Q = I2 R
(a) With the help of a labelled diagram, define the principle and working of a moving coil galvanometer. (b) Two parallel coaxial circular coils of equal radius 'R' and equal nu
working and construction of fabry perot interferometer
Describe how the law of conservation of energy holds good in light interference pattern
Does the force constant of a spring changes if it is cut into parts? Ans) Force constant does not change because it is a constant
Disadvantages of Low Power factor Greater conductor size : To transfer or distribute a fixed amount of power at constant voltage, the conductor will have to carry more current
what is the use of dead load?
At serve, a tennis player aims to hit the ball horizontally. What minimum speed is required for the ball to clear the 0.90 m high net about 15.0 m from the server if the ball is “
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