Вопрос
The circuit contains a capacitor . Indicate the r resis tano e of t his c ircu it! omega L (1)/(omega C) L U=U_(m)cosomega t I_(m)=U_(m)omega C
Решения
3.7
(202 Голоса)
Исаак
Экспертная проверка
мастер · Репетитор 5 лет
Ответ
To determine the resistance of the circuit containing a capacitor, we need to understand the context of the circuit and the given equations. The equations provided seem to relate to an AC circuit with a capacitor and possibly an inductor. Let's break down the given information:1.
: This term typically represents the inductive reactance in an AC circuit, where
is the angular frequency and
is the inductance.2.
: This term represents the capacitive reactance in an AC circuit, where
is the angular frequency and
is the capacitance.3.
: This is the equation of a sinusoidal voltage in an AC circuit, where
is the peak voltage and
is the phase angle.4.
: This equation seems to relate the peak current (
) to the peak voltage (
), angular frequency (
), and capacitance (
).Given these equations, it appears that the circuit is an AC circuit with both inductive and capacitive components. The resistance (
) in such a circuit can be found using the impedance formula in an AC circuit:
where:-
is the impedance,-
is the resistance,-
is the inductive reactance (
),-
is the capacitive reactance (
).The total impedance
can be related to the peak voltage and peak current by:
Substituting the given values:
Since
is the impedance, which is a combination of resistance and reactance, we can equate the real part of
to the resistance
:
However, without additional information about the phase angle or the specific values of
,
, and
, we cannot determine the exact value of the resistance
. The resistance would depend on the relative magnitudes of the inductive and capacitive reactances and their phase relationship in the circuit.