A voltage source is an active element in electrical circuits which delivers voltage to the circuit. An ideal voltage source should have no internal resistance (or Impedance in AC) and its output voltage is independent of the current passing through the element. The voltage delivered by an ideal voltage source is always
Showing posts with label voltage. Show all posts
Showing posts with label voltage. Show all posts
Voltage Source
Labels:
active element,
circuit elements,
circuits,
dc voltage,
electrical,
electrical circuits,
network elements,
network theory,
sources,
voltage
Practical voltage source
A voltage source is an active element which deliver power to the circuit (for example, batteries are the voltage sources). Practically all the voltage sources have some internal resistance in contrast to its ideal case. A practical voltage source is modelled as, an ideal voltage source in series with its internal resistance indicated by a resistor. Due to the presence of the internal resistance the voltage delivered by a practical voltage source is no more constant as in the ideal case,
Labels:
circuit elements,
circuits,
DC,
electrical circuits,
network elements,
network theory,
sources,
voltage
Kirchhoff’s voltage law – KVL
Kirchhoff’s laws are applicable only to lumped elements. This law may be applied to
Labels:
circuits,
electrical circuits,
network theory,
voltage
Voltage
Description
The electric potential difference between two points is called voltage. The voltage is equal to the work done per unit charge to move a test charge between two points against static electric field.
Electric potential is given by
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