The electric field E, current density j ...

The electric field E, current density j and conductivity `sigma` of a conductor are related as

`sigma = E//j`

`sigma = j//E`

`sigma = jE`

`sigma = 1//jE`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

CURRENT ELECTRICITY
ERRORLESS |Exercise Kirchhoff s Law, cells|8 Videos
CURRENT ELECTRICITY
ERRORLESS |Exercise Different Measuring Instruments|1 Videos
COMMUNICATION SYSTEM
ERRORLESS |Exercise S E T|14 Videos
ELECTRO MAGNETIC INDUCTION
ERRORLESS |Exercise SET|20 Videos

Similar Questions

Explore conceptually related problems

The electric intesity E, current density j and conductivity sigma are related as:

Current Density In Conductors

The electric intensity E , current density j and specific resistance k are related to each other by the relation

Electric field (E) and current density (J) have relation

Derive the expression for the current density of a conductor in terms of the conductivity and applied electic field. Explain with reason how the mobility of electrons in a conductor changes when the potential difference applied is doubled, keeping the temperature of the conductor constant.

Column-I gives physical quantities based on a situation in which an ideal cell of e.m.f. V is connected across a cylindrical rod of uniform cross-section area and conductivity ( sigma ) as shown in figure. E, J, phi and i are electric field, current density, electric flux and current through shaded cross-section respectively as shown in figure. Physical quantities in Column-II are equal to those in column I. Match the expression in Column-I with the statements in Column-II.

The electric intensity at a pont near a charged conductor having a charge density sigma is

The electric intensity at a point near a charged conductor of surface charge density sigma is

ERRORLESS -CURRENT ELECTRICITY-Self Evaluation Test -19

The electric field E, current density j and conductivity sigma of a co...
Text Solution
|
Figure 6.51 shows a simple a potentiometer circuit for measuring a sma...
Text Solution
|
A car has a fresh storage battery of emf 12 V and internal resistance ...
Text Solution
|
If the balance point is obtained at the 35th cm in a metre bridge the ...
Text Solution
|
The equivalent resistance across the terminals of source of e.m.f. 24 ...
Text Solution
|
In the circuit shown in figure, switch S is initially closed and S i...
Text Solution
|
The figure here shows a portion of a circuit. What are the magnitude a...
Text Solution
|
A carbon resistor has colour strips as violet, yellow brown and golden...
Text Solution
|
A voltmeter of resistance 1000 Omega is connected across a resistance ...
Text Solution
|
A beam contains 2 xx 10^(8) doubly charged positive ions per cubic cen...
Text Solution
|
In the circuit shown, the reading of ammeter when switch S is open ...
Text Solution
|
In the circuit as shown in figure the
Text Solution
|
In figure shows a rectangular block with dimensions x , 2 x and 4 x ....
Text Solution
|
A battery is connected to a uniform resistance wire AB and B is eart...
Text Solution
|
A cylindrical metal wire of length l and cross sections area S , has...
Text Solution
|
A potential divider is used to give outputs of 4 V and 8 V from a 12 V...
Text Solution
|
Find equivalent resistance between A and B
Text Solution
|
Following figures show four situations in which positive and negative ...
Text Solution
|
A and B are two square plates of same metal and same thickness but len...
Text Solution
|
A moving coil galvanometer is converted into an ammeter reads upto 0.0...
Text Solution
|
Two conductors are made of the same material and have the same length....
Text Solution
|