The diagram shows a capacitor C and a resisto | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) In an $RC$ series circuit,the current $I$ flows through both the resistor $R$ and the capacitor $C$.$1$. The voltage across the resistor ($V_R$,me

Vedclass · Accepted Answer

$I$ and $II$ only

Vedclass · Answer

(C) In an $RC$ series circuit,the current $I$ flows through both the resistor $R$ and the capacitor $C$.$1$. The voltage across the resistor ($V_R$,measured by $V_2$) is always in phase with the current ($I$,measured by $A$). Thus,statement $I$ is correct.$2$. The voltage across the capacitor ($V_C$,measured by $V_1$) lags behind the current by $\frac{\pi}{2}$.$3$. Since $V_R$ is in phase with $I$,and $V_C$ lags behind $I$ by $\frac{\pi}{2}$,it follows that $V_C$ lags behind $V_R$ by $\frac{\pi}{2}$. This means $V_R$ is ahead of $V_C$ by $\frac{\pi}{2}$. Therefore,statement $II$ is correct.$4$. Statement $III$ is incorrect because $V_1$ (voltage across capacitor) lags behind the current $A$ by $\frac{\pi}{2}$.Thus,both statements $I$ and $II$ are correct.

Similar Questions

The graph shows current $v/s$ voltage in a series $RLC$ $A.C.$ circuit. The arrow indicates the direction that this curve is drawn as time progresses. In this plot,the

In an $LCR$ series $a.c.$ circuit,the voltage across each of the components $L, C$ and $R$ is $60 \,V$. The voltage across the $LC$ combination is

$A$ capacitor of capacitance $100 \mu F$ and a coil of resistance $20 \Omega$ and inductance $12.5 mH$ are connected in series with a $220 V, \frac{200}{\pi} Hz$ $AC$ source. The maximum value of instantaneous current in the circuit is (in $A$)

When $80 \ V$ $d.c.$ is applied across a solenoid,a current of $0.8 \ A$ flows in it. When $80 \ V$ $a.c.$ is applied across the same solenoid,the current becomes $0.4 \ A$. If the frequency of $a.c.$ source is $50 \ Hz$,the impedance and inductance of the solenoid are nearly:

An inductor $L$ and a capacitor $C$ are connected in the circuit as shown in the figure. The frequency of the power supply is equal to the resonant frequency of the circuit. Which ammeter will read zero ampere?

Vedclass Test Series

Exam Paper Generator

Online Exam Module