MCQ
A vertical wire carrying a current in the upward direction is placed in horizontal magnetic field directed towards north. The wire will experience a force directed towards
- ANorth
- BSouth
- CEast
- ✓West
✓
Answer
Correct option: D.
West
West
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Tesla is the unit of
A conducting bar $PQ$ of length $l$ carrying current $I$ is suspended from a rigid support as shown in figure. A uniform magnetic field $B$ perpendicular to $PQ$ and directed away from the reader (inside the plane) is applied. If the mass of the bar is $M$ the tension in each string is
→Two conductors of same length are connected in parallel as shown in figure. Their cross-sectional areas $A_1$ and $A_2$ and their resistivities are ${\rho _1}$ and ${\rho _2}$ respectively. The equivalent resistivity of this combination is
→In a series $L R$ circuit $X_{L}=R$ and power factor of the circuit is $P _{1}$. When capacitor with capacitance $C$ such that $X _{ L }= X _{ C }$ is put in series, the power factor becomes $P_{2}$. The ratio $\frac{ P _{1}}{ P _{2}}$ is
→A pellet carrying a charge of $0.5$ coulomb is accelerated through a potential of $2000$ volts. It attains some kinetic energy equal to
→The transition from the state $n = 3\,\, to\,\, n =1$ in a hydrogen like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transition from
→A photon of wavelength 4400 Å is passing through vacuum. The effective mass and momentum of the photon are respectively
In a coil of resistance $10\,\,\Omega$, the induced current developed by changing magnetic flux through it, is shown in figure as a function of time . The magnitude of change in flux through the coil in weber is .......$Wb$
→A rod of length $2 cm$ makes an angle $\frac{2 \pi}{3}$ rad with the principal axis of a thin convex lens. The lens has a focal length of $10 cm$ and is placed at a distance of $\frac{40}{3} cm$ from the object as shown in the figure. The height of the image is $\frac{30 \sqrt{3}}{13} cm$ and the angle made by it with respect to the principal axis is $\alpha$ rad. The value of $\alpha$ is $\frac{\pi}{n} rad$, where $n$ is. . . . .
→An ellipsoidal cavity is carved within a perfect conductor. A positive charge $q$ is placed at the centre of the cavity. The points $A$ and $B$ are on the cavity surface as shown in the figure. Then
→