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Diffstat (limited to '3523/CH4/EX4.10.1/Ex4_1.sce')
| -rw-r--r-- | 3523/CH4/EX4.10.1/Ex4_1.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/3523/CH4/EX4.10.1/Ex4_1.sce b/3523/CH4/EX4.10.1/Ex4_1.sce new file mode 100644 index 000000000..dbb15ecd1 --- /dev/null +++ b/3523/CH4/EX4.10.1/Ex4_1.sce @@ -0,0 +1,20 @@ +//Example 1// Ch 4
+clc;
+clear;
+close;
+// given data
+I1 = 2.7*10^-8;//steady state current in Amperes
+V = 10; //voltage in kV
+d1 = 0.005; //spacing between the plane electrodes in meters
+d2 = 0.01; // spacing incresed in meters
+I2 = 2.7*10^-7;//increased steady state current in amperes
+e = 1.6*10^-19;
+x = 1/(d2-d1);
+y = log(I2/I1);
+alpha = x*y;//ionization coefficient
+printf("ionization coefficient %f m^-1",alpha)
+I0 = I1*exp(-alpha*d1);//photoelctric current
+printf("photoelectric current %e A",I0)
+n0 = I0/e;
+printf("no of electrons emitted from cathode %e electrons/s",n0)
+
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