The voltage and current in the primary of a transformer are 200V and 2Arespectively. lf the transformer is used to light ten 12 V, 30 W bulbs, calculate its efficiency.

Similar Questions

When an atom is in the ground state, it is said to be ...

A body accelerates uniformly from rest at $2ms^{-2}$. Calculate the velocity after traveling 9m...

Palm oil from a bottle flows out more easily after it as been heated because the ...

Which of the following descriptions of the image formed by a plane mirror is not correct. the image ...

The diagram shown represents a block-and-tackle pulley system on which an effort of W Newtons suppor...

In the diagram above, the ratio of the electric power dissipated in the 6Ω and the 3Ω re...

An object is embedded in a block of ice, 10 cm below the plane surface. if the refractive index of t...

The frequency of beats produced when two tunning forks of frequencies 258Hz and 270Hz are sounded cl...

Using the circuit diagram above. Calculate the total charge in the circuit ...

A source of sound produces waves in air of wavelength 1.65m. If the speed of sound in air is 330ms-1...