Two changes +q and -q are attached to th...

Two changes +q and -q are attached to the two end of a light rod of length L, as shown in figure . The system is given a velocity v perpendicular to magnetic force on the system of charges and magnitude of force on one charges by the rod , are respectively .

zero , zero

zero, qvB

2qvB , 0

2qvB, qvB

Text Solution

Verified by Experts

The correct Answer is:

Net charge on system = 0
`therefore` Net force on system = 0 .
Now consider one charge : T = qvB`.

Topper's Solved these Questions

AIIMS 2007
AIIMS PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos
AIIMS 2009
AIIMS PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

Electric charges -q -q -q and 3q are placed at the corners of a square ABCD of length 1 as shown in figure.The magnitude of electric dipole moment of the system is

Two masses each of mass M are attached to the end of a rigid massless rod of length L . The moment of interia of the system about an axis passing centre of mass and perpendicular to its length is.

Two particles , each of mass m and charge q , are attached to the two ends of a light rigid rod of length 2 R . The rod is rotated at constant angular speed about a perpendicular axis passing through its centre. The ratio of the magnitudes of the magnetic moment of the system and its angular momentum about the centre of the rod is

Three charges Q, (+q) and (+q) are placed at the vertices of an equilateral triangle of side l as shown in the figure. It the net electrostatic energy of the system is zero, then Q is equal to

A charge q enters into a magnetic field (B) perpendicularly with velocity V. The time rate of work done by the magnetic force on the charge is

Four point charges Q, q, Q and q are placed at the corners of a square of side' a' as shown in the figure. Find the . (a) resultnat electric force on a charge Q and . (b) potential energy of this system.

What is the force acting on charge (q) moving in a direction perpendicular to a magnetic field (B) with velocity v?

A conducing rod of length l is falling with a velocity v perpendicular to a unifrorm horizontal magnetic field B . The potential difference between its two ends will be

AIIMS PREVIOUS YEAR PAPERS-AIIMS 2008-PHYSICS

N(1) atoms of a radioactive element emit N(2) beta partilces per secon...
Text Solution
|
Figure shows the variation of energy with the orbit radius r of a sate...
Text Solution
|
Two changes +q and -q are attached to the two end of a light rod of le...
Text Solution
|
If a wire is extended to a new length , the L, the work done is
Text Solution
|
The equivalent resistance between the point X and Y in the following c...
Text Solution
|
The intensity of magnetic field due to an isolated pole of strength m ...
Text Solution
|
A bulb and a conender are connected in series with an A.C source. On i...
Text Solution
|
Two heater wires, made of the same material and having the same length...
Text Solution
|
The ratio of magnetic fields on the axis of a cricular current cerryin...
Text Solution
|
Lumen is the unit of
Text Solution
|
A charge q0 is distributed uniformly on a ring of radius R. A sphere o...
Text Solution
|
When 100 V dc is applied across a coil, a current of 1A flows through ...
Text Solution
|
A bulb of 25 W , 200 V and another bulb of 100 W 200 V are connected i...
Text Solution
|
Which of the following is matched wrongly?
Text Solution
|
The for bidden gap in the energy bands of sillcon is
Text Solution
|
When white light passes through a prism, the devination is maximum for
Text Solution
|
Which of the following gates correspond to the truth table given belo...
Text Solution
|
Light is incident normally on a diffraction grating through which the ...
Text Solution
|
If three wave no atmosphere, the average temperature on the surface of...
Text Solution
|
The current curve between loge""(j)/(T^2)" and "l/T
Text Solution
|