(√4623.9 + √484.2) – √2303.97

Charges +q and –q are placed at (–d, 0) and (+d, 0). A third charge Q is placed at (0, x). For what value of x will the force on Q be maximum?

A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves:

A device used for converting A.C. into D.C. is called –

The intensity of any wave is proportional to which quantity?

Which of the following statements is true for a conductor in an electric field?

What is the unit of electric current?  

The pitch of a sound is determined by its:

In order to investigate the internal atomic structure of crystals, we make use of:

Which of the following is a reason for excessive current in electrical circuits?

I. Direct touching of wires

A particle moves along the x-axis such that its velocity varies with position as

v(x) = k√(a² – x²)