MCQ
Planets producing larger magnetic field have larger
  • Rotational speed
  • B
    Density
  • C
    Mass
  • D
    Size

Answer

Correct option: A.
Rotational speed
a
(a)

Given : Planets producing larger magnetic field have larger

Solution :We know that magnetic field is in some way proportional to how fast is the core of given planet is spinning. So we can say that planets producing larger magnetic field have larger rotational speed.

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

Antimony and bismuth are usually used in a thermocouple, because
A light bulb is placed between two plane mirrors inclined at an angle of 60°. The number of images formed are
The electrostatic force between the metal plates of an isolated parallel capacitor C having a charge Q and area A is:
In the given figure, if the Wheatstone bridge is in balanced condition, then the value of resistance 'S' will beImage
$n$ identical cells each of $e.m.f.$ $E$ and internal resistance $r$ are connected in series. An external resistance $R$ is connected in series to this combination. The current through $R$ is
A proton of mass $m$ and charge $+e$ is moving in a circular orbit in a magnetic field with energy $1\, MeV$. What should be the energy of $\alpha - $particle (mass = $4m$ and charge = $+ 2e),$ so that it can revolve in the path of same radius.......$MeV$
A square of side $L$ meters lies in the $x-y$ plane in a region, where the magnetic field is given by $B=B_0(2 \hat{ i }+3 \hat{ j }+4 \hat{ k }) T$, where $B _0$ is constant. The magnitude of flux passing through the square is:
Two mirrors are inclined at an angle $\theta$ as shown in the figure. Light ray is incident parallel to one of the mirrors. The way will start retracting its path after third reflection if $\theta = ........$
Resistance of semiconductor at 0 K is
Electric charge is uniformly distributed along a long straight wire of radius 1mm. The charge per cm length of the wire is Q coulomb. Another cylindrical surface of radius 50 cm and length 1m symmetrically encloses the wire as shown in the figure. The total electric flux passing through the cylindrical surface is