MCQ
An electron experiences a force equal to its weight when placed in an electric field. The intensity of the field will be
  • A
    $1.7 \times 10^{-11}\ N / C $
  • B
    $5.0 \times 10^{-11}\ N / C$
  • $5.5 \times 10^{-11}\ N / C$
  • D
    $56\ N/C$

Answer

Correct option: C.
$5.5 \times 10^{-11}\ N / C$
$5.5 \times 10^{-11}\ N / C$

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

A radioactive nucleus emits a beta particle. The parent and daughter nuclei are (a) Isotopes(b) Isotones(c) Isomers(d) Isobars
       
When you speak to your friend, which of the following parameters have a unique value in the sound produced?
  1. Frequency.
  2. Wavelength.
  3. Amplitude.
  4. Wave velocity.
The work function of metal is $1\ eV$. Light of wavelength $3000 \mathring A$ is incident on this metal surface. The velocity of emitted photo$-$electrons will be
The two ends of a spring are displaced along the length of the spring. All displacement have equal magnitudes. In which case or cases the tension or compression in the spring will have a maximum magnitude?
  1. The right end is displaced towards right and the left end towards left.
  2. Both ends are displaced towards right.
  3. Both ends are displaced towards left.
  4. The right end is displaced towards left and the left end towards right.
By a monochromatic wave, we mean(a) A single ray(b) A single ray of a single colour    (c) Wave having a single wavelength(d) Many rays of a single colour
   
   
In a P-N junction diode if P region is heavily doped than n region then the depletion layer is(a) Greater in P region(b) Greater in N region(c) Equal in both region(d) No depletion layer is formed in this case
 
 
 
 
When an electron jumps from the fourth orbit to the second orbit, one gets the:
In the given circuit the current $I_1$ is
An electron is accelerated by a potential difference of $12000$ volts. It then enters a uniform magnetic field of $10^{-3} T$ applied perpendicular to the path of electron. Find the radius of path. Given mass of electron  $= 9 \times {10^{-31}}\ kg$  and charge on electron $= 1.6 \times {10^{-19}} C$
What is used as a moderator in a nuclear reactor(a) Water                                          (b) Graphite(c) Cadmium(d) Steel