In 1913 Niels Henrik Bohr published his new theory of the atoms constitution. Just like Rutherford he assumed that electrons rotate around the nucleus. […]
Categories
Categories
Thompson Rutherford Model of matter
Modern atomic theory provides a reasonably satisfactory explanation of the properties of matter, the mechanisms of chemical change and the […]
Categories
Capacitance in AC Circuits
When capacitors are connected across a direct current DC supply voltage they become charged to the value of the applied […]
Categories
Alternating Current
A.C. circuits are circuits through which an alternating current flows. Such circuits are used extensively in power transmission, radio, telecommunication […]
Up to this point inductance and capacitance have been explained individually in ac circuits. The rest of this part will […]
Categories
Capacitance Reactance
So far you have been dealing with the capacitor as a device which passes ac and in which the only […]
Categories
Resonance in RLC Series Circuit
The current, I, in an RLC series circuit is given by I = V/Z = V/√R2 + (XL – XC)2 Where XL = […]
Categories
Power in A.C Circuits
Power in an A.C. Circuit The average power in an a.c. circuit is given by P = IVcosɸ where I, […]
Alternating current Direct current (DC) circuits involve current flowing in one direction. In alternating current (AC) circuits, instead of a […]
Pests of crops can be prevented or controlled through the following methods: (1) Physical control; (2) Cultural Control (3) Biological […]