By EasyHow
How to increase the frequency of the current
Due to increased migration along the chain of charges increases the frequency of the current. In turn, the increase in the number migrated per unit of time charges amounted to an increase of current in the circuit and reduce its resistance, and this can be achieved by using a circuit with a capacitor.
You will need
- - capacitor;
- generator;
- key;
- - wires.
Instruction
Assemble the circuit with the capacitor, in which a sinusoidal voltage creates a generator of alternating current.
At zero voltage in the time circuit key in the first quarter of the period the voltage at the generator terminals will increase, and the capacitor will start charging. In the assembled chain will appear current, but, despite the fact that the voltage on the plates of the generator is still quite small, the value of the current in the circuit will be greatest (the value of its charge).
Note that decreasing the discharge of the capacitor increased current in the circuit is reduced, and the total discharge current is zero. The value of the voltage on the plates of the capacitor will continue to grow, and at the time of full discharge of the capacitor reaches the maximum value (i.e. the value will be completely opposite to the voltage on the plates of the generator). Thus, we can conclude: in the initial moment of time the current with the greatest power will flock to the uncharged capacitor, and the charging will start to decrease.
Note
Remember that an increase in the frequency of the current decreases and the resistance of the capacitor alternating current (capacitive resistance of the capacitor). Thus, the resistance capacity is inversely proportional to the capacitance circuit and the frequency of the feeding current.
Useful advice
Capacitor – a unique item. When he discharged, it behaves like a short circuit – the current through it flows without restrictions, and its value tends to infinity. When he charged, at this point, the circuit is open and the circuit starts to continuously increase. It turns out an interesting relationship – there is voltage but no current, and Vice versa. Therefore, to increase the frequency of the current is possible only in case of a weak capacitor, which is in such a condition with a certain interval as many times as necessary. Use this information when creating a circuit.
