<h3><u>Answer;</u></h3>
Proportional to the charge of the magnet
<h3><u>Explanation</u>;</h3>
- <em><u>A magnet is a substance or a material that has the capability of producing magnetic field.</u></em> Magnets may repel or attract poles of another magnet. based on the basic law of magnetism, like poles of magnets repel each other while unlike poles of magnets attracts each other.
- Therefore, <em><u>magnets exerts forces on each other. These forces of attraction field of magnets are as a result of currents of electrically charge electrons orbiting in the nuclei of the particles that are in the material making up the magnet. </u></em>The strength of these forces is proportional to the charge of the magnet.
<h3><u>Answer;</u></h3>
counterclockwise in the horizontal plane
<h3><u>Explanation;</u></h3>
- Using the right hand grip rule, the direction of magnetic field produced by a current carrying conductor or wire can be determined.
- <em><u>Right hand grip states that if one grasps the wire or the conductor using the right hand, such that the thumb points the direction of the current, then the other four fingers shows or points the direction of the magnetic field produced.</u></em>
- Therefore,<em><u> if the direction of the current is upward then using the right hand grip rule the direction of magnetic field will be counter clockwise on a horizontal plane.</u></em>
<span>5 electrons because first shell can only have two electrons and second can hold up until 8</span>
Answer:
Weight of the box? 980 N
Value of the normal force? 630 N
Acceleration of the box? 7.5 m/s^2
Explanation:
I got the answer right
If the atom of carbon has lost 4 electrons, it has now an excess of charge equal to +4e:
where
Its charge is concentrated in the nucleus, so we can treat it as a single-point charge, whose electric field is given by:
where k is the Coulomb's constant and r is the distance from the charge. In our problem,
therefore the electric field at this distance is
Answer:
The correct option option is;
iii) A is true but R is false
Explanation:
Concave mirrors are used as the reflector in torches, search lights and vehicle-head light because unlike convex mirrors and flat mirrors which spread spread a light away from the light source, concave mirrors reflect the light coming from directions from the light source placed in the mirror's focus towards a collection of parallel beam all directed towards a more or less common focus to aid in seeing far in car head-light and for searching in search light
Therefore, the assertion is true but the reason is not correct as the orientation of reflected light cannot be differentiated and the reason for the use of concave mirrors in the given instances is for enable the visualization of objects in dark areas with aid of the light at the focal point.