Download App

Electric Charges and Fields — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsElectric Charges and Fields1 Mark
Question
In metals ____ are the mobile charges.
✓

Answer

  1. Electrons.

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

Explore more

More "M.C.Q (1 Marks)" from Electric Charges and Fields→Electric Charges and Fields — all question types→Physics STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

What is the molar mass of ammonium carbonate $\ce{(NH_4​)_{2​}CO_3​}?$
→
The thermo $e.m.f.$ of a thermocouple varies with the temperature $\theta$ of the hot junction as $\mathrm{E}=\mathrm{a} \theta+\mathrm{b} \theta^2$ in volts where the ratio $\mathrm{a} / \mathrm{b}$ is $700^{\circ} \mathrm{C}$. If the cold junction is kept at $0^{\circ} \mathrm{C}$, then the neutral temperature is
→
A space or region around a magnet in which a force is experienced by magnetic pole is called.
→
The work function of aluminium is 4.2 eV. If two photons, each of energy 3.5 eV strike an electron of aluminium, then emission of electrons will be (a) Possible(b) Not possible(c) Data is incomplete(d) Depend upon the density of the surface
 
 
 
 
→
Polarization of light confirms :
→
The electric field at a point on equatorial line of a dipole and direction of the dipole moment(a) Will be parallel(b) Will be in opposite direction(c) Will be perpendicular(d) Are not related
   
   
→
A diminished image of an object is to be obtained on a screen 1.0 m from it. This can be achieved by appropriately placing(a) A convex mirror of suitable focal length(b) A concave mirror of suitable focal length(c) A concave lens of suitable focal length(d) A convex lens of suitable focal length less than 0.25 m
 
 
 
 
→
A sphere of radius $1 \ cm$ has potential of $8000 V ,$ then energy density near its surface will be
→
A set of atoms in an excited state decays.
→
An electron moving with a velocity of $15ms^{-1}$ enters a uniform magnetic field of $0.2 T$, along a direction parallel to the field. What would be its trajectory in this field?
→