Home
Class 12
PHYSICS
An ionization chamber with parallel cond...

An ionization chamber with parallel conducting plates as anode and cathode has `5 xx 10^(7)` electrons and the same number of singly-charged positive ions per `cm^(3)`. The electrons are moving at `0.4 m//s`. The current density from anode to cathodes `4 mu A//m^(2)`. The velocity of positive ions moving towards cathode is

A

`0.1 ms^(-1)`

B

`0.4 ms^(-1)`

C

Zero

D

`1.6ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

In a discharge tube when 200 volt potential difference is applied 6.25xx10^(18) electrons move from cathode to anode and 3.125xx10^(18) singly charged positive ions move from anode to cathode in one second. Then the power of tube is:

A straight wire carries a current of 10A. An electron moving at 10^(3) m/s is at distance 2.0 cm from the wire. Find the force acting on the electron if its velocity is directed toward the wire?

An electron is moving around infinite linear positive charge in the orbit of 0.1 m. If the linear charge density is 1 muC//m , the velocity of electron will be

The number density of electrons and holes in pure silicon at 27^@ C are equal and its value is 2.0 xx 10^16 m^(-3) . On doping with indium the hole density increases to 4.5xx 10^22 m^(-3) , the electron density in doped silicon is

The uncertainty in the position of an electron moving with a velocity of 3xx10^(4) cm sec^(-1) accurate up to 0.011 %

An electron moving near an atomic nucleus has a speed of 6xx10^(6) +- 1% m//s . What is the uncertainty in its position?

A current of 10 A is mainatained in a conductor of cross - section 1 cm^(2) . If the free electron density in the conductor is 9 xx 10^(28) m^(-3) , then drift velocity of free electrons is .

In a neon discharge tube 2.9 xx 10^(18) Ne^(+) ions move to the right each second while 1.2 xx 10^(18) eletrons move to the left per second. Electron charge is 1.6 xx 10^(-19) C . The current in the discharge tube

The electron in hydrogen atom moves with a speed of 2.2xx10^(6)m//s in an orbit of radius 5.3xx10^(-11)cm . Find the magnetic moment of the orbiting electron.