Download App

STD 12 - 5. Magnetism and matter — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - 5. Magnetism and matter4 Marks
MCQ
Two identical bar magnets are held perpendicular to each other with a certain separation, as shown below. The area around the magnets is divided into four zones. Given that there is a neutral point it is located in
  • ✓
    zone $I$
  • B
    zone $II$
  • C
    zone $III$
  • D
    zone $IV$
✓

Answer

Correct option: A.
zone $I$
a
(a)

Neutral point appears in region in which fields of magnets are in opposite directions.

From above figure, we can conclude that magnetic fields cancel each other in region $I$ only.

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

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

A source voltage of $8V$ drives the diode in fig. through a current-limiting resistor of $100$ ohm. Then the magnitude of the slope load line on the $V-I$ characteristics of the diode is
→
Force of attraction between the plates of a parallel plate capacitor is
→
An open cubical tank was initially fully filled with water. When the tank was accelerated on a horizontal plane along one of its side it was found that one third of volume of water spilled out. The acceleration was
→
A slab of stone of area $0.36\;m ^2$ and thickness $0.1 \;m$ is exposed on the lower surface to steam at $100^{\circ} C$. A block of ice at $0^{\circ} C$ rests on the upper surface of the slab. In one hour $4.8\; kg$ of ice is melted. The thermal conductivity of slab is .......... $J / m / s /{ }^{\circ} C$ (Given latent heat of fusion of ice $=3.36 \times 10^5\; J kg ^{-1}$)
→
Two magnets, each of magnetic moment $‘M’ $ are placed so as to form a cross at right angles to each other. The magnetic moment of the system will be
→
Select the pair whose dimensions are same
→
Find the amount of heat supplied to decrease the volume of an ice water mixture by $1 \,\,cm^3$ without any change in temperature. $(\rho_ {ice} = 0.9 \rho_{water}, L_{ice} = 80 \,\,cal/gm).$ ......... $cal$
→
The ratio of specific heats of a gas is $\frac{9}{7}$, then the number of degrees of freedom of the gas molecules for translational motion is :
→
Assertion : Mass of moving photon varies inversely as the wavelength.
Reason : Energy of the particle $= mass\times(speed \,of \,light)^2$
→
The $i - v$ curve for anti-resonant circuit is
→