Awire 2 m long, 0.1 mm in diameter and has resistance of 20 ohm. calculate the resistivityof its material.

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

Decreased sensitivity to an unchanging stimulus is known as