How would I calculate the charge on a small sphere with an excess of 5.0 x 10 14 electrons? Asked Kaitlin Thomas Answer: We know that charge on an electron is (-) 1.6 x 10-19 C If the sphere has 5.0 x 10 14 electrons in excess then the body has a net negative charge … Continue reading Calculating charge on a body with excess of electrons

# Speed of sound

Why sound travels faster in humid air than normal air as humid air is denser than normal air? (Akash asked) Answer: The speed of sound in a medium is inversely proportional to the square root of its density. Humid air is less dense than dry air. Therefore the speed of sounf in humid air is greater than that in … Continue reading Speed of sound