The voltage of the domestic electric supply is represented by the equation V = 311 sin314.2t. Determine the frequency of the a.c. supply [\(\pi\) = 3.142]

Similar Questions

A household refrigerator is rated 200 watts. If electricity costs 5k per kWh, what is the cost of op...

A cell of emf 2 V has an internal resistance of 0.5 Ω. A current of 0.4 A passes through an ex...

An object is said to undergo oscillatory motion when it moves ...

Rectifiers are used to convert ...

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

The factor which enables the ear to distinguish between a note played on different instruments is th...

It is easier to roll a barrel full of coal tar than to pull it because ...

If a cage containing a truck of coal weighing 750 kg is raised to a height of 90 m in a minute, what...

Which of the following statements correctly defines quantitatively the work done by a force? the pro...

Body floats in fluid when its …………………...