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I need help on problem 3
3)Consider the resistor described in problem 1 carrying a current of 1 mA. If the voltage drop across the resistor is 25:0 Volts, what is the resistance (in k )? (b) Electrical currents crossing the human body in excess of 0.3A are typically deadly. If
Transcribed Image Text:top plale
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mdicate the direchron
flow
They aln mdreak the
Tecki
nupar
tharge fer a leaky
Transcribed Image Text:Problem 1 Consider the leaky capacitor shown in the figure above. Speci-
fications are as follows: The plate area is A=1.0 cm², and the gap distace is
L=40 pm. The density of free electrons is n.
density of free holes n, =1x 10" particles/m* is the same. Suppose that the
holes are immobile, (a) For a current I 1 mA, what is the rate (in particles
per second) at which electrons pass by the imaginary boundary? (b) What drift
velocity (in meters/see) would give rise to this current? (c) Drift velocities in
conductors tend to be small, but small as compared to what? How many orders
of magnitude smaller is the average drift velocity in this device than the RMS
thermal velocity of an electron moving in free space at room temperature? (Use
the law of equipartition to find the RMIS thermal velocity of a free electron.)
CIL
=
1 x 1026 particles/m², and the
780
I.
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