electrostatic series

The measuring unit of electric charge__________

• coulomb

• Ampere

• volt

• meter

The order of materials according to the easiness of losing electrons when they are rubbed together.

• chemical activity series

• electrostatic series

Which of the following materials gains electrons when rubbed with a piece of wool?

• wood

• glass

• silk

• paper

All the following materials precede cotton in the electrostatic series, except

• silk

• glass

• ebonite

• wood

When a carbon rod is rubbed with dry silk, no electrostatic charge is generated on

the carbon rod. What is the reason for this?

• Carbon precedes silk in the electrostatic series.

• Silk precedes carbon in the electrostatic series.

• Silk is a nonconducting material.

• The carbon rod is not insulated.

A balloon hanged by a nylon string repels a rod of ebonite, because the ebonite rod

• carries a charge opposite to that of the balloon.

• carries the same charge as the balloon.

• is charged, and the balloon is uncharged.

• is uncharged, and the balloon is charged.

Weak electric charges are measured by __________

• Ammeter

• voltameter

• coulomb meter

• nanometer

Weak electric charges are measured in ________ unit

• volt

• ampere

• coulomb

• newton

The charge on the rubbed object varies depending on the type of the rubbing material.

• True

• False

When a piece of silk is rubbed with a piece of wool, electrons transfer from the piece of ................. to the piece of __________

• wool \silk

• silk \ wool