In a region, steady and uniform electric and magnetic fields are … - Vidyadip

MCQ

In a region, steady and uniform electric and magnetic fields are present. These two fields are parallel to each other. A charged particle is released from rest in this region. The path of the particle will be a

A
Circle
B
Helix
✓
Straight line
D
Ellipse

✓

Answer

Correct option: C.

Straight line

c
The charged particle will move along the lines of electric field ( and magnetic field). Magnetic field will exert no force. The force by electric field will be along the lines of uniform electric field. Hence the particle will move in a straight line

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 4. Moving charges and magnetism→4. Moving charges and magnetism — all question types→Physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

The radioactive decay of uranium into thorium is expressed by the equation

where ‘X’ is

In the following common emitter configuration an NPN transistor with current gain b = 100 is used. The output voltage of the amplifier will be

Current in a circuit falls from $5.0\, A$ to $0.0\, A$ in $0.1\, s$. If an average $emf$ of $200\, V$ induced, give an estimate of the self-inductance of the circuit....$H$

If $\alpha = 0.98$ and current through emitter $i_e = 20 \,mA,$ the value of $\beta$ is

The image of an extented object, placed perpendicular to the principal axis of a mirror, will be erect if

$(a)$ The object and image both are real

$(b)$ The object and image both are virtual

$(c)$ The object is real but the image is virtual

$(d)$ The object is virtual but the image is real

A capacitor of capacitance 6μF is charged upto 100 volt. The energy stored in the capacitor is

Two photons having:

The figure shows a diagonal symmetric arrangement of capacitors and a battery. If the potential of $C$ is zero, then

A long, straight wire is turned into a loop of radius $10\,cm$ (see figure). If a current of $8\, A$ is passed through the loop, then the value of the magnetic field and its direction at the centre $C$ of the loop shall be close to

One junction of a certain thermoelectric couple is at a fixed temperature $T_t$ and the other junction is at temperature T. The thermo electromotive force for this is expressed by E = K$(T-T_r)[T_0-\frac{1}{2}(T+T_r)]$ . At temperature ${T}=\frac{1}{2} {~T}_0$, the thermoelectric power is