A friend from abroad presents you a coffee maker when she visited you. Unfortunately it was designed to operate at 110V line to obtain 960W power that it needs.: Which type of transformer you use to operate the coffee maker at 220V?

A friend from abroad presents you a coffee maker when she visited you. Unfortunately it was designed to operate at 110V line to obtain 960W power that it needs. : What is the resistance of the coffee maker?

A friend from abroad presents you a coffee maker when she visited you. Unfortunately it was designed to operate at 110V line to obtain 960W power that it needs.:ASsuming the transformer you use as ideal, cal culate the primary and secondary currents.?

A friend from abroad presents you a coffeemaker when she visited you.Unfortunately it was designed to operate at 110V line to obtain 960W power that it needs:-What Is the resistance of the cofeemaker?

An electric bulb rated 220-100W.The power consumed by it when operated on 110V will be

The resistance of a heater coil is 110Omega . A resistance R is connected in parallel with it and combination is joined in series with a resistance of 11Omega to a 220V main line. The heater operates with a power of 110W the value of R in Omega is

In a Van de Graff type generator a spherical metal shell is to be a 15 xx10^(6)V electrode. The dielectric strength of the gas surrounding the electrode is ' 5 x 10^(7) V /m'. What is the minimum radius of the spherical shell required? (You will learn from this exercise why one cannot build an electrostatic generator using a very small shell which requires a small charge to acquire a high potential)