How many charges are flowing at any point in the wire

Reference no: EM13343453

1. A steady current of 1.5 A flows through a 3600 ohm resistor for 2 seconds.

a) How many charges are flowing at any point in the wire during the 2 seconds?

b) How many electrons are flowing past any point?

c) What voltage produces the current?

d) Calculate the power transformed.

2. a) Compute the voltage drop along a 25 m length of household no. 14 copper wire. The wire has a circular cross section of radius of 0.9 mm and carries a 15-A current.

b) Find the current density J

c) Calculate the E-field across the wire.

d) Find the resistance of the wire

e) Find the drift speed of the free electrons moving through the copper wire. (consider conduction of n= 10^29 free electrons)

Reference no: EM13343453

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