Advertisements
Advertisements
प्रश्न
What is the turns ratio i.e., transformer ratio, ns: np, in an ideal transformer which in-creases ac voltage from 220 V to 33000 V?
Advertisements
उत्तर
`"n"_s/"n"_p = "E"_s/"E"_p = 33000/220 = 150`
APPEARS IN
संबंधित प्रश्न
Derive an expression for e.m.f. and current in terms of turns ratio
Which coil of a step up transformer is made thicker and why?
Name the transformer used in the power transmitting station of a power plant.
Complete the following sentence :
……… energy is converted into …………energy by an electric motor.
Mention the two characteristic properties of the material suitable for making core of a transformer.
State the factors on which the frequency of the alternating e.m.f. depends.
In a series resonant RLC circuit, the voltage across 100 Ω resistor is 40 V. The resonant frequency ω is 250 rad/s. If the value of C is 4 µF, then the voltage across L is
A 220 V input is supplied to a transformer. The output circuit draws a current of 2.0 A at 440 V. If the ratio of output to input power is 0.8, then the current drawn by primary winding is ______.
Define a Transformer.
