Distinguish between step-up and step-down.

What is step-up and step-down transformer?

1 MW power is to be delivered from a power station to a town 10 km away. One uses a pair of Cu wires of radius 0.5 cm for this purpose. Calculate the fraction of ohmic losses to power transmitted if, a step-up transformer is used to boost the voltage to 11000 V,power is transmitted, then a step-down transformer is used to bring voltage to 220 V . (rho Cu = 1.7 xx 10^-8 SI unit)

What is turns ratio of a transformer? What can you say about its value for 1 step- up transformer 2) step down transformer?

The transformation ratio in the step-up transformer is

List down the steps involved in the productio of cheese once the whey is separated from yoghurt.

What is the determining step?

Which are the steps of Mitosis?

The primary of transformer has 5000 turns and works on 400V and 100 Walt. Find the number of turns in the secondary to step down voltage to 100V.

The step of disaster management that forms an important link between measures after disaster and national development.

Assertion : A horse has to pull a cart harder during the first few steps of his motion. Reason: The first few steps are always difficult.