Diagram shows a capacitor C and a resistor R connected in series to an ac source. {V₁} and {V₂}

English

Gujarati

Hindi

7.Alternating Current

medium

The diagram shows a capacitor $C$ and a resistor $R$ connected in series to an $ac$ source. ${V_1}$ and ${V_2}$ are voltmeters and $A$ is an ammeterConsider now the following statements

$I$.Readings in $A$ and $V_2$ are always in phase

$II$.Reading in $V_1$ is ahead in phase with reading in $V_2$

$III$.Readings in $A$ and $V_1$ are always in phase which of these statements are/is correct

A

I only

B

$II$ only

C

$I$ and $II$ only

D

$II$ and $III$ only

Solution

(b) In $RC$ series circuit voltage across the capacitor leads the voltage across the resistance by $\frac{\pi }{2}$

Standard 12

Physics

Share

Similar Questions

Explain $AC$ voltage applied to a resistor and explain it with necessary graph.

medium

A $10 \mu \mathrm{F}$ capacitor is connected to a $210 \mathrm{~V}, 50 \mathrm{~Hz}$ source as shown in figure. The peak current in the circuit is nearly $(\pi=3.14)$ :

medium

(NEET-2024)

In a simple $L-R$ circuit with $A.C$. source the potential difference at any instant across inductor and resistance are $V_L$ and $V_R$ respectively and $A.C.$ souree has potential difference $V_{Ac}$ at the same instant. Then

medium

A sinusoidal supply of frequency $10 \,Hz$ and $r.m.s.$ voltage $12 \,V$ is connected to a $2.1 \,\mu F$ capacitor. What is $r.m.s.$ value of current is ………. $mA$

easy

An $a.c.$ source of voltage $V$ and of frequency $50\,Hz$ is connected to an inductor of $2H$ and negligible resistance. $A$ current of $r.m.s.$ value $I$ flows in the coil. When the frequency of the voltage is changed to $400\,Hz$ keeping the magnitude of $V$ the same, the current is now

hard