Download App

Magnetic Effect of Current — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsMagnetic Effect of Current1 Mark
MCQ
An ionized gas contains both positive and negative ions. If it is subjected simultaneously to an electric field along the +x direction and a magnetic field along the +z direction, then
  • A
    Positive ions deflect towards +y direction and negative ions towards –y direction
  • B
    All ions deflect towards +y direction
  • ✓
    All ions deflect towards –y direction
  • D
    Positive ions deflect towards –y direction and negative ions towards +y direction
✓

Answer

Correct option: C.
All ions deflect towards –y direction
 All ions deflect towards –y direction

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

More "M.C.Q (1 Marks)" from Magnetic Effect of Current→Magnetic Effect of Current — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

The inductors of two $L R$ circuits are placed next to each other, as shown in the figure. The values of the self-inductance of the inductors, resistances, mutual-inductance and applied voltages are specified in the given circuit. After both the switches are closed simultaneously, the total work done by the batteries against the induced $E M F$ in the inductors by the time the currents reach their steady state values is. . . . . $mJ$
→
In the circuit, the logical value of $A =1$ or $B =1$ when potential at $A$ or $B$ is $5\,V$ and the logical value of $A=0$ or $B=0$ when potential at $A$ or $B$ is $0\,V$.

The truth table of the given circuit will be :

→
In Young's double slit experiment, if the source of light changes from orange to blue then
→
An electron is revolving around a proton in a circular orbit of diameter $0.1 \ nm$ . It produces a magnetic field of $14 Wb / m ^2$ at the proton. What is angular speed of the electron?
→
The SI unit of dipole moment is:
→
A galvanometer can be converted into an ammeter by connecting
→
The condition for obtaining secondary maxima in the diffraction pattern due to single slit is
→
A fully charged capacitor has a capacitance ‘C’. It is discharged through a small coil of resistance wire embedded in a thermally insulated block of specific heat capacity ‘s’ and mass ‘m’. If the temperature of the block is raised by ‘ ∆T ’, the potential difference ‘V’ across the capacitance is
→
Young's experiment establishes that
→
The device that does not work on the principle of mutual induction is
→