A long thin wire is placed along the y-axis (just outside) of a frame of refernce. There exists a uniform magnetic field of `10^(-6)` T along the x-ax

Monjur Alahi

A long thin wire is placed along the y-axis (just outside) of a frame of refernce. There exists a uniform magnetic field of `10^(-6)` T along the x-axis. Calculate the magnetic field at the points (0,0,2m),(0,2m,0) and (2m,0,0) when the wire carries 10A current. Revise the calculation for a thick wire.


0 like 0 dislike
1 views
Share with your friends

1 Answers

Salim Ahmed Kawsar

Call

Correct Answer - `2 xx 10^(-6)`T, `infity`, `sqrt(2) xx 10^(-6)`T, `2 xx 10^(-6)`T, `10^(-6)`T, `sqrt(2)xx 10^(-6)`T

0 like 0 dislike
1 views
Talk Doctor Online in Bissoy App
A rod of length l rotates with a uniform angular velocity omega about its perpendicular bisector. A uniform magnetic field B exists parallel to the ax

Correct Answer - D Since there is no magnetic flux change due to rotation of rod hence the potential difference between two ends of the rod is zero.

2 Answers 1 views
A particle having specific charge s is projected in xy plane with a speed V. There exists a uniform magnetic field in z direction having a fixed magni

Correct Answer - `(4v)/(sigmaB_(0))`

2 Answers 1 views
In a region of space a uniform magnetic field exist in positive z direction and there also exists a uniform electric field along positive y direction.

Correct Answer - `R=(mE_(0))/(qB_(0)^(2))`

2 Answers 2 views
ABC is a triangular frame made of a conducting wire and is right angled at B. Its side BC is vertical and AB is horizontal. The frame is placed in a u

Correct Answer - (a) Zero (b) `(1)/(2) B omega L^(2)`

2 Answers 1 views
A coil carrying a current `10mA` is placed in a uniform magnetic field so that its axis coincides with the field direction. The single layer winding o

Correct Answer - [8 kT]

2 Answers 1 views
A short magnet placed with its axis at `30^(@)` with a uniform external magnetic field of `0.2` T experiences a torque of `4 xx 10^(-2)` J . (a) Calcu

Correct Answer - (a) `0.4 J T^(-1)` (b) For stable equilibrium `vecm` is parallel to `vecB` and U = `-1.6 xx 10^(-2) J` For unstable equilibrium `vecm` is antiparallel to...

2 Answers 1 views
A wire frame of area `3.92xx10^(-4)m^(2)` and resistance `20Omega` is suspended freely from a 0.392m long thread. There is a uniform magnetic field of

Correct Answer - `[2xx10^(-6)V,10^(-7)A]`

2 Answers 1 views
A long cylinder of radius `a` carrying a uniform surface charge rotates about its axis with an angular velocity `omega`. Find the magnetic field energ

Correct Answer - `(mu_(0)lamda^(2)omega^(2)a^(2))/(8pi)`

2 Answers 1 views
A uniform electric field of `30NC^(-1)` exists along the X-axis calculate the potential difference `V_(B)-V_(A)` between the points A (4m,2m) and B(10

Correct Answer - `-180`V

2 Answers 1 views
A coil having 100 turns and area `0.020m^(2)` is placed normally in a magnetic field. The magnetic field changes from `0.20 Wb m^(-2)` at a uniform ra

Correct Answer - 800 V

2 Answers 4 views
X