A device used for detecting the presence of very weak electric charges and determining whether that charge is positive or negative

Layer test is used to detect the presence of

Sure check for presence of electric charge is

The device used to detect the presence of static electric charges on a body is called (ammeter/gold leaf electroscope)

The borax bead test can be used to detect the presence of

To detect the presence of CO2 ​ ________ water is used.

In an electric circuit containing a battery,the charge (assumed positive )inside the battery.

Find the condition under which the charged particles moving with different speeds in the presence of electric and magnetic field vectors can be used to select charged particles of a particular speed.

Explain the l-effect leads to the development of partial charges while the E-effect to the full positive and negative charges.

(a) Define electric flux. Write its S.I. units. (b) Using Gauss's law, prove that the electric field at a point due to a uniformly charged infinite plane sheet is independent of the distance from it. (c ) How is the field directed if (i) the sheet is positively charged, (ii) negatively charged ?

Which of the following processes is not responsible for the presence of electric charge on the sol particles ?