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Diffstat (limited to '644/CH1/EX1.2/p2.sce')
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diff --git a/644/CH1/EX1.2/p2.sce b/644/CH1/EX1.2/p2.sce new file mode 100644 index 000000000..6fab4cf33 --- /dev/null +++ b/644/CH1/EX1.2/p2.sce @@ -0,0 +1,13 @@ +// Example 1.2 Find the velocity of charge leading to 1 A current which flows in a copper conductor of cross-section 1 cm^2 and length 10 Km. Free electron density of copper = 8.5X10^28 per m^3. How long will it take the electric charge to travel from one end of the conductor to the other.
+// 1 metre = 100 centimetre
+// 1 kilometre = 1000 metre
+i =1; // value of current (A)
+A = 10^-4;// crossectional area of the conductor (m^2)
+L = 10*10^3;// length of the conductor (m)
+n =8.5*10^28;// charge density (e/m^3)
+// Let V be the velocity of charge (m/S) and t (s) be the time taken by the charge to travel from one end of the conductor to the other
+// FORMULAE: V= i/nAe, where is charge of an electron and t =L/V
+V = i/prod([n,A,e]);// calculation of drift velocity
+t = L/V;//calculation of the time
+disp(V," velocity of the charge (in m/S)=" )
+disp(t,"time taken by the charge to travel conductor of length 10 Km(second)=")
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