How many d electrons are in present Cr²⁺ ion
4
5
6
3

Which one of the following sets correctly represents the increase in the paramagnetic property of ions

Cu⁺²>V⁺²>Cr⁺²>Mn⁺²

Cu⁺²< Cr⁺²< V⁺²< Mn⁺²

Cu⁺²< V⁺²< Cr⁺²< Mn⁺²

V⁺²< Cu⁺²< Cr⁺²< Mn⁺²

What is Dielectric?

What is Dielectric Constant?

Define polarization of a dielectric material.

What are the four polarization mechanisms?

What is the difference between active and passive dielectrics?

List the various breakdown mechanisms in dielectrics.

What is pyro-electricity?

A lead acid battery fitted in a truck develops 24V and has an internal
resistance of 0.01 Ω. It is used to supply current to head lights etc. If the total load is equal to
100 watts, find :
(i) voltage drop in internal resistance
(ii) terminal voltage

A d.c. source generating 500 V has an internal resistance of 1000 Ω. Find the load current if load resistance is
(i) 10 Ω
(ii) 50 Ω
(iii) 100 Ω.