MCQ
If one penetrates a uniformly charged spherical cloud, electric field strength:
  • A
    Decreases directly as the distance from the centre.
  • B
    Increases directly as the distance from the centre.
  • C
    Remains constant.
  • D
    None of these.

Answer

  1. Decreases directly as the distance from the centre.

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 nature of effective nuclear forces is :
The fundamental frequency of a string is proportional to:
  1. Inverse of its length.
  2. The diameter.
  3. The tension.
  4. The density.
A magnetic needle of magnetic moment 6.7 × 10-2 Am2 and moment of inertia 7.5 × 10-6kg m2 is performing simple harmonic oscillations in a magnetic field of 0.01 T. Time taken for 10 complete oscillations is:

In a transformer 220 ac voltage is increased to 2200 volts. If the number of turns in the secondary are 2000, then the number of turns in the primary will be

(a) 200

(b) 100

(c) 50       

(d) 20

The work function of a photoelectric material is 3.3 eV. The threshold frequency will be equal to

(a) 8  

(b) 8  

(c) 8 

(d) 8 

Each plate of a parallel plate capacitor has a charge q on it. The capacitor is now connected to a batter. Now:
The frequency of radio waves corresponding to a wavelength of 10m is:
What describe the Einsteins equation for the relativity of mass and energy?

The energy of a photon of characteristic X-rays from  a Coolidge tube comes from

(a) The kinetic energy of the striking electron

(b) The kinetic energy of the free electrons of the target

(c) The kinetic energy of the ions of the target

(d) An electronic transition of the target atom

Between the plates of a parallel plate condenser there is 1mm thick paper of dielectric constant 4. It is charged at 100 volt. The electric field in volt/metre between the plates of the capacitor is

(a) 100

(b) 100000

(c) 25000

(d) 4000000