We can use the equation E = k | Q | r 2 E = k | Q | r2 to find the magnitude of the electric field. The direction of the electric field is determined by the sign of the charge,
<h3>What is electric and magnetic field ?</h3>
With the use of electricity and other types of artificial and natural illumination, invisible energy fields known as electric and magnetic fields (EMFs) and radiation are created.
- While the magnetic field is discernible by the force it exerts on other magnetic particles and moving electric charges, the electric field is actually the force per unit charge experienced by a non-moving point charge at any given location inside the field.
Learn more about Electromagnetic field here:
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<h3><u>Answer;</u></h3>
Plano-convex lens
<h3><u>Explanation;</u></h3>
- Plano-convex lens has at least one plane surface
- <em><u>Plano-convex lenses are types of lenses that have one spherical surface and one flat surface. </u></em>
- These types of lenses are designed for infinite conjugate use or simple imaging in non-critical applications. The lenses are ideal for all-purpose focusing elements.
- For example; they are ideal for beam expansion, light projection, or for expanding an optical system's focal length.
The direction would be dependent on the direction of the current through the circuit. But for this, you can use the right hand rule to determine the direction of the magnetic field. <span>The </span>right hand rule<span> states that: to determine the direction of the magnetic force on a positive moving charge, ƒ, point the thumb of the </span>right hand<span> in the direction of v, the fingers in the direction of B, and a perpendicular to the palm points in the direction of F.</span>