Asilver wire has a cross sectional area a = 2.0 mm2. a total of 9.4 × 1018 electrons pass through the wire in 3.0 s. the conduction electron density in silver is 5.8 × 1028 electrons/m3 and e = 1.60 × 10-19 c. what is the drift velocity of these electrons? a silver wire has a cross sectional area a = 2.0 mm2. a total of 9.4 × 1018 electrons pass through the wire in 3.0 s. the conduction electron density in silver is 5.8 × 1028 electrons/m3 and e = 1.60 × 10-19 c. what is the drift velocity of these electrons? 1.1 × 10-5 m/s 7.4 × 10-5 m/s 9.1 × 10-5 m/s 5.2 × 10-5 m/s 2.7 × 10-5 m/s

The drift speed of electrons is

Explanation:

We define our Values

Number of electrons

Area

Time

To find the drift velocity we need to use the formula

However we do not have the current, for that we need the equation,

The conduction electron density in silver,

Replacing the previous value of current in Drift Velocity Formula,

We can conclude that the drift speed of electrons is

an electric circuit

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min