Question
The free electron density is more in .....:

Answer

  1. Conductors
Explanation:
Free electron density is more in conductors that is why they are useful in conducting electricity.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The half-life of a radioactive substance is 40 years. How long will it take to reduce to one fourth of its original amount and what is the value of decay constant(a) 40 year, 0.9173/year(b) 90 year, 9.017/year(c) 80 year, 0.0173 year(d) None of these
   
   
An astronomical refractive telescope has an objective of focal length $20m$ and an eyepiece of focal length $2\ cm.$
In an electromagnetic wave, the electric and magnetising fields are $100 \mathrm{Vm}^{-1}$ and $0.265 \mathrm{Am}^{-1}$ The maximum energy flow is
The capacity of a parallel plate capacitor with no dielectric substance but with a separation of 0.4 cm is  2 μF. The separation is reduced to half and it is filled with a dielectric substance of value 2.8. The final capacity of the capacitor is(a) 11.2 μF(b) 15.6 μF(c) 19.2 μF(d) 22. 4 μF
       
The work function of aluminum is 4.2 eV. If two photons each of energy 3.5 eV strike an electron of aluminum, then emission of electron will be:
For which frequency of light, the human eye is most sensitive?
An ionization chamber with parallel conducting plates as anode and cathode has $5 \times 10^7$ electrons and the same number of singlycharged positive ions per $cm ^3$. The electrons are moving at $0.4\ m / s$. The current density from anode to cathode is $4 \ \mu A / m ^2$. The velocity of positive ions moving |towards cathode is
A constant current i is passed through a resistor.  Taking the temperature coefficient of resistance into account, indicate which of the plots shown in figure best represents the rate of production of thermal energy in the resistor
Two light waves of equal amplitude and wavelength are super imposed. The amplitude of the resultant wave will be maximum when the phase difference between them is :
Photo cell is  a device to(a) Store photons(b) Measure light intensity(c) Convert photon energy into mechanical energy(d) Store electrical energy for replacing storage batteries