Category: Physics
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Direction of current for the induced E.M.F
The Lenz’s law attempts to describe how direction of induced E.M.F relates with the direction of movement of magnetic flux linkage and the current flow. According to Lenz, direction of the induced current depending on the the amount of flux linkage in a coil. The setup below can be useful in describing the Lenz’s law.…
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Exploring conical pendulum
The conical pendulum is a fascinating mechanical system that consists of a mass attached to a string, which is fixed at one end and allowed to swing in a conical motion. This unique motion is a result of the tension in the string and the force of gravity acting on the mass. The conical pendulum…
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Units of measuring volumes
When it comes to measuring volumes, we have a variety of units at our disposal. The most commonly units of measuring volumes: include liters (L), milliliters (mL), gallons (gal), and cubic meters (m³). It’s important to understand how to convert between these units to accurately express quantities in different contexts. Whether you’re working with liquids,…
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Area of irregularly shaped surfaces
Finding area of irregularly shaped surfaces involves finding area of plane surface whose area cannot be calculated from known formula. Irregular shapes are shapes that cannot be precisely described in terms of geometrical shapes. Their edges and vertices are not uniform. To estimate of the area of an irregular shape, one can divide the shape…
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Power losses during high Voltage transmission
Power losses is common during high voltage transmission . High voltage power transmission involves moving electrical power from the source where it is being generated to consumer premises (sometimes hundreds of kilometers way) where it need to be used. High voltage transmission In high voltage power transmission, power loss during transmission is minimized by transporting…
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Estimating focal length of a lens
In school labs, we may always be presented with a lenses whose focal length we don’t know. We can always determine the focal length of the given lenses by applying various methods of estimating focal length of a lens.
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Regularly shaped Solid: Finding volume
According to oxford dictionary, solid means hard or firm. Finding volume of Regularly shaped solids involves application of well defined formulas.
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Fleming’s Right-hand rule
If you hold the thumb and the first two fingers of the right hand mutually at right angles with the first finger pointing in the direction of the magnetic field and the thumb pointing in the direction of motion, then the second finger points in the direction of the induced current.
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Ray diagrams for thin lenses
In books, we use ray diagrams to represent images formed by thin lenses. Ray diagrams are straight lines with arrows that shows direction of light rays.
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Magnitude of induced EMF
The magnitude of the induced current determines the current that will flow in the conductor making the coil. The amount of current produced from changing magnetic flux depends on a number of factors
