MCQ
In the given diagram loop tends to
  • A
    expand
  • Contract
  • C
    rotate about $x-$ axis
  • D
    rotate about $y-$ axis

Answer

Correct option: B.
Contract
b

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

An L-R circuit has a cell of e.m.f. E, which is switched on at time t = 0. The current in the circuit after a long time will be
A network of four capacitors of capacity equal to $C_1 = C, C_2 = 2C, C_3 = 3C$ and $C_4 = 4C$ are conducted in a battery as shown in the figure. The ratio of the charges on $C_2$ and $C_4$ is
When a potential difference $V$ is applied across a conductor at a temperature $T$, the drift velocity of electrons is proportional to:
Doppler's effect in sound in addition to relative velocity between source and observer, also depends while source and observer or both are moving. Doppler effect in light depend only on the relative velocity of source and observer. The reason of this is
The magnetic flux through a coil varies with time $t$ as shown in the diagram. Which graph best represents the variation of the e.m.f. $E$ induced in the coil with time $t$ ?
Assertion : Microwave communication is preferred over optical communication.
Reason : Microwaves provide large number of channels and band width compared to optical signals.
The $k$  line of singly ionised calcium has a wavelength of $393.3 \,nm$ as measured on earth. In the spectrum of one of the observed galaxies, this spectral line is located at $401.8 \,nm$. The speed with which the galaxy is moving away from us, will be.....$km/s$
A double slit experiment is performed by using light of wavelength of $6000\,\mathring A$. If distance of screen is $1\,m$ and slits are $0.1\, cm$ apart then calculate angular position of $10^{th}$ bright fringe
For uranium nucleus how does its mass vary with volume
Two dielectric slab of dielectric constant $K_1$ and $K_2$ and of same thickness is inserted in parallel plats capacitor and $K_1 = 2K_2$ . Potential difference across slabs are $V_1$ and $V_2$ respectively then