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What is the saying relating lagging and leading of currents and voltages in a circuit for inductors and capacitors?
Wiki User
∙ 12y ago
For capacitive reactance, current leads voltage. In an "ideal" circut, the leading phase angle would be 90 degrees, but this does not happen in practice due to resistance.
For inductive reactance, current lags voltage. In an "ideal" circut, the lagging phase angle would be 90 degrees, but this does not happen in practice due to resistance.
Wiki User
∙ 12y ago
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Why j is used in inductance and capacitance?
j is in this context the square root of -1, particularly in the representation exp(i.pi/2). This represents the fact that while currents and voltages of resistors are represented as real (in phase) on the Argand diagram (imaginary upwards, real sideways). currents and voltages are pi/2 out of phase for capacitors and inductors.. Not a subject to be handled by a very brief answer.
Why capacitors are almost always connected in parallel and not in series?
to provide a discharge path for voltages.
Most commonly used capacitors in electronics circuits are made up of?
pass AC voltages.
What is the meaning of Passive in Electrical?
Passive electronic components are those which do not amplify voltages or currents by themselves. These include resistors, capacitors and coils. Transistors and integrated circuits are known as' Active' components since they can amplify signals applied to them. In AC circuits coils (chokes) and capacitors DO change their characteristics when varying frequencies are applied to them but they are generally not classified as active components.
What is subtransient current?
Transients -- they can be currents or voltages -- occur momentarily and fleetingly in response to a stimulus or change in the equilibrium of a circuit. Transients frequently occur when power is applied to or removed from a circuit, because of expanding or collapsing magnetic fields in inductors or the charging or discharging of capacitors.
Why j is used in inductance and capacitance?
j is in this context the square root of -1, particularly in the representation exp(i.pi/2). This represents the fact that while currents and voltages of resistors are represented as real (in phase) on the Argand diagram (imaginary upwards, real sideways). currents and voltages are pi/2 out of phase for capacitors and inductors.. Not a subject to be handled by a very brief answer.
Do the experimental and theoretical values of voltages and currents agree?
No
Why capacitors are almost always connected in parallel and not in series?
to provide a discharge path for voltages.
What is offset voltage or currents?
the minimal difference of the two voltages
What is the cause of an electric current?
Electric currents are caused by voltages.
Most commonly used capacitors in electronics circuits are made up of?
pass AC voltages.
What is the meaning of Passive in Electrical?
Passive electronic components are those which do not amplify voltages or currents by themselves. These include resistors, capacitors and coils. Transistors and integrated circuits are known as' Active' components since they can amplify signals applied to them. In AC circuits coils (chokes) and capacitors DO change their characteristics when varying frequencies are applied to them but they are generally not classified as active components.
How do different currents and voltages affect the body?
the body can act as a conductor
What is subtransient current?
Transients -- they can be currents or voltages -- occur momentarily and fleetingly in response to a stimulus or change in the equilibrium of a circuit. Transients frequently occur when power is applied to or removed from a circuit, because of expanding or collapsing magnetic fields in inductors or the charging or discharging of capacitors.
What is comperator?
Comparator is basically,which allows more than one voltages and currents to be in its output...
What is formula for connecting 2 capacitors in parallel?
The result of connecting two capacitors in parallel is a new capacitor whose capacitance is the sum of the values of the two you connected up. Note. the safe working voltage is equal to the lower of the two working voltages on the two capacitors.
What is the advantage of using network reduction in electrical circuits?
It makes the calculation of currents and voltages easier.
