Explanation

Lenz's law is consistent with the law of conservation of energy because it states that the induced current will always oppose the change that produced it.

Explanation

The force $F$ acting on a charged particle moving in a magnetic field is given by the Lorentz force equation, which can be expressed as:

$$F = q(mathbf{v} times mathbf{B})$$

Where:

• $\mathrm{<font\; color="\#0000ff"><b>F\; is\; the\; force\; acting\; on\; the\; particle,</b></font>}$
• $q$ is the charge of the particle,
• $mathbf{v}$ is the velocity vector of the particle,
• $\mathbf{B}$ is the magnetic flux density (magnetic field strength) vector.

The cross product $\mathbf{v}\times \mathbf{B}$ indicates that the direction of the force is perpendicular to both the velocity and the magnetic field vectors. Thus, the correct expression for the force is $F=qv\times B$.

Explanation

Accuracy is defined as the measure of how close an instrument's readings are to the true value.

It indicating how error-free it is.

Explanation

• Wind produces kinetic energy, which is the energy of motion.
• This kinetic energy is used to rotate the blades of a fan or turbine in a wind energy system.
• It converting the wind's kinetic energy into mechanical energy, and ultimately into electrical energy.

Explanation

• Cone cells are responsible for vision in bright light and color vision.
• There are three types of cone cells, each sensitive to different parts of the visual spectrum, which allows us to see a range of colors.

Explanation

• Conduction is the transfer of internal energy (heat) through direct contact between particles or molecules.
• Including collisions and movements of electrons within a substance.
• This process occurs in solids.

Explanation

• Meteoroids are small rocky particles that float in outer space.
• They can range in size from a grain of sand to a boulder.
• When a meteoroid enters Earth's atmosphere, it becomes a meteor (shooting star).
• It can potentially land on Earth as a meteorite.

Explanation

• A Periscope uses two plane mirrors placed at a 45° angle to each other.
• It allowing the user to see objects that are not in their direct line of sight.
• This is commonly used in submarines, tanks, and other applications where visibility is limited.

Explanation

• Venus is the brightest planet.
• It has an atmosphere but no moons.
• It's identical in size, chemistry and gravity.
• It has volcanoes, mountains and sand.
• It's also called Sister Planet of the Earth.

Explanation

• The Sun is so massive that it would take about 1,300,000 Earths lined up side by side to equal the Sun's diameter.
• Alternatively, you could fit approximately 1.3 million Earths inside the Sun.