Conquer Magnetism Physics Problems with Our Experts

Why like poles repel each other and unlike poles attract each other?

merodavandOU 2022-11-27

Which part of the bar magnet exerts the strongest force?
Only north pole
Both the poles
Middle part
Only south pole

vegetatzz8s 2022-11-25

The magnitude of the kinetic energy of a body is ‘k’. If its speed doubles, what is its kinetic energy?

NormmodulxEE 2022-11-25

Which one of the following statements is/are correct?br>Abr>Formula can be written by balancing the valencies of the different atoms.br>Bbr>Formula can be written by reducing the valencies of different atoms.br>Cbr>Formula are not affected by the presence of valencies.br>Dbr>Formula can be written by adding the valencies of different atoms.

Adriel Vance 2022-11-24

The magnetic field inside a long straight solenoid-carrying current
is zero
decreases as we move towards its end
increases as we move towards its end
is the same at all points

lascieflYr 2022-11-23

What coil position in the magnetic field creates the highest emf?

hEorpaigh3tR 2022-11-23

What is a radial magnetic field?

Rigoberto Drake 2022-11-18

A straight wire has 8 A current in the -y-direction. The magnetic field is produced due to the current in the wire in addition to this a uniform magnetic field B₀ with magnitude 1.5e-6 T is in the +x-direction.
a) In the xz plane, find the magnitude of the magnetic field at the point $x = 0, z = 1.00 m$
b) Give its direction.
c) In the xz plane, find the magnitude of the magnetic field at the point $x = 1.00 m, z = 0$
d) Give its direction.
e) In the xz plane, find the magnitude of the magnetic field at the point $x = 0, z = - 0.25 m$

Karley Castillo 2022-11-14

The magnetic flux density within a bar of some material is 0.630 tesla at an H field of $5 \times 10^{5} A / m$ . Compute the following for this material: (a) the magnetic permeability, and (b) the magnetic susceptibility. (c) What type(s) of magnetism would you suggest is(are) being displayed by this material ? Why ?

Wyatt Weeks 2022-10-25

How is an electromagnet made? Name two factors on which the strength of the magnetic depends. field of an electromagnet depends

racmanovcf 2022-10-23

Electric fields can be sources of magnetic fields. When does this happen?
a) When the electric field is static and the charge in the said electric field is moving with constant acceleration
b) When the electric field is static
c) When the electric field is static and the charge in the said electric field is moving with uniform velocity
d) The answer cannot be found on the other choices.

Hunter Shah 2022-10-20

The motion of a charged particles under the action of a magnetic field alone is always motionA. Constant speedB. Constant velocityC. Constant forceD. Constant Acceleration

Deja Bradshaw 2022-10-17

A rail gun accelerates a projectile from rest by using the magnetic force on a current-carrying wire.
The wire has radius $r = 5.10 \times 10^{- 4} m$ and is made of copper having a density of $ρ = 8960 k g / m^{3}$ . The gun consists of rails of length L = 1.00 m in a constant magnetic field of magnitude B = 2.00 T,oriented perpendicular to the plane defined by the rails. The wire forms an electrical connectionacross the rails at one end of the rails. When triggered, a current of $1.00 \times 10^{4} A$ flows through thewire, which accelerates the wire along the rails. Calculate the final speed of the wire as it leaves the rails.

miklintisyt 2022-10-16

The strength of a magnetic field is measured in teslas.
True
False

Cory Russell 2022-10-14

The Maxwell equation $\oint \vec{E} . \vec{d A} = \frac{Q_{i n}}{ϵ_{0}}$ is also called
a. Faraday's Law of Electromagnetic induction
b. Gauss Law of Electricity
c. Ampere's Law
d. Gauss Law of Magnetism

omgespit9q 2022-10-14

From bar magnets to the magnetic field around a current carrying wire, the source of all magnetism is ________.a)electrical conductorsb)electrical insulators c)tiny pieces of irond)the orientation and motion of electronse)tiny domains of aligned protons

shadyufog0 2022-10-06

A conducting wire is wrapped around an iron cylinder. Which statement is correct?
a) A current in the wire will turn the iron into a magnet.
b)Neither of other answers are correct.
c)If the iron is magnetized, a current will be produced in the wire.
d)Both of other answers are correct.

deksteenk9 2022-10-03

a) Define magnetic field.
b) A long straight wire carries 7 A current. At a distance 4 mm from the wire, a particle is moving parallel to it. If the charge of the particle is 8 \mu C and moves with 200 ms^{-1}. Find
1b) the magnetic flux density, 4 mm from the wire.
2b) the magnetic force exerted on the particle.

clovnerie0q 2022-10-02

A particle with a charge of $5 μ C$ is moving at $3 \cdot 10^{6} m / s$ perpendicularly through a magnetic field with a strength of 0.06T. What is the magnitude of the force on the particle?

Plaginicj 2022-09-29

What two characteristics are balanced in hydrostatic equilibrium?
a. gravity and magnetism
b. mass and energy
c. weight and pressure
d. positive and negative charges

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