A material the resists the flow of electrons is called a

What is the exact meaning of croos section and cross sectional area of a conductor?

When there is a large difference in two resistor's sizes, what useful approximations can be used when considering their series and parallel combinations? (This is a handy thing to know in circuit design!)

Current flows through a resistor; (a) with no direction since it is not a vector (b) from any potential to any different potential (c) from high potential to low potential (d) from low potential to high potential (e) cannot be determined

What is the volume of 2400kg of gasoline (petrol) if the density of petrol is 0.7g/km3

During cooling, the kinetic energy of the molecules falls. Why does this happen? A. The motion of the molecules increases. B. The motion of the molecules slows down. C. The Van der Waals forces between molecules decrease. D.

An alpha particle (q = + 2e, m = 4.00 u) travels in a circular path of radius 6.56 cm in a uniform magnetic field with B = 1.70 T.

If a train going 60 m/s hits the brakes, and it takes the train 1 minute 25 seconds to stop, what is the train's acceleration?

A scientist who performs an experiment has no idea what the outcome of the experiment is going to be. True or False

Why should a truck have an engine that can produce more force than a regular car? A) "Net forces" do not affect cars and trucks the same way.

How does a electron travel through a closed circuit?