Yes, Earth has an electric field. The electric field of the Earth is the consequence of the Earth having a net negative charge due to charge... View Article
Faraday cage blocks the effects of an external field on its internal contents or the effects of an internal field on the outside environment.... View Article
In Physics, uncertainty is a range of values which likely encloses the true value. Uncertainty is categorized in the following two ways:... View Article
From Newton's Second Law of Motion, we know that F = ma, from the equation, we can see that force is directly proportional to the acceleration.... View Article
The velocity of an object increases when we drop it down. This indicates that the object accelerates. This is due to the attractive force of... View Article
Some of the factors that affect the rate of cooling are: The rate of cooling depends on the thermal conductivity of the material from which... View Article
An ideal voltmeter has infinite resistance and it is an open circuit. However, in reality, it is not possible to build a voltmeter with infinite... View Article
Yes, a capacitor itself does not convert an AC to DC. However, capacitors are connected across bridge rectifiers to obtain a smoother ripple-free... View Article
The inductor is equivalent to a short circuit when connected to a DC circuit. The inductor in a DC circuit acts like an ordinary connecting wire... View Article
The temperature of the gas is directly proportional to the average kinetic energy of its molecules. Faster moving particles collide the container... View Article
The thermodynamic arrow of time is provided by the second law of thermodynamics, which says that in an isolated system, entropy tends to increase... View Article
For all scattering angles, we measure two intensity peaks. One peak is located at the wavelength λ, which is the wavelength of the incident beam.... View Article
A geomagnetic reversal is a change in a planet’s magnetic field such that the positions of magnetic north and magnetic south are interchanged... View Article
In the process of photosynthesis, not all of the incident sunlight is absorbed by the plant. Some energy is reflected and some are lost as heat.... View Article
Yes, in the case of thin-film interference, the phenomena of interference happen without diffraction. Thin-film interference is a natural... View Article
A pulse width modulating signal is generated using a comparator. The modulating signal forms one part of the input to the comparator while the... View Article
