Physics, 01.10.2019 08:50 mrojas1011

Describe the magnetic field in the vicinity of a bar magnet.

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Well both ends of the magnet have a diffrent magnetic force. i hope this was the answer you where looking for, and have a nice rest of the day

Answer from: MonkeyBurroughs

Magnetic force is not the term to describe the field that I would use. There is a magnetic field surrounding the bar magnet that leaves the north pole of the magnet and enters into the south pole of the magnet. Two magnets near each other will apply a force to the other one but a magnet by itself does not have a force. Also, magnetic field lines end and begin on themselves, that is they form loops where as electric field lines begin and end on charges. This is because there are no such thing as magnetic charges.

Answer from: Quest

a skateboard rolling across the street - apex

Answer from: Quest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

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Describe the magnetic field in the vicinity of a bar magnet....

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