Alternating Cur...

In the series L-C-R circuit figure, the voltmeter and ammeter readings are

A resistor $$R$$ and capacitor $$ C$$ are connected in series across an AC source of rms voltage $$5 V$$. If the rms voltage across $$C$$ is $$3 V$$ then that across $$R$$ is :

The potential difference between the ends of a resistance R is $$V_{R}$$, between the ends of capacitor is $$V_{C}$$ $$=$$ 2$$V_{R}$$ and between the ends of inductance is $$V_{L}$$ $$=$$ 3$$V_{R}$$ then the alternating potential of the source in terms of $$V_{R}$$ will be:

The natural frequency of an LC - circuit is $$1,25,000$$ cycles per second. Then the capacitor C is replaced by another capacitor with a dielectric medium of dielectric constant k. In this case, the frequency decreases by $$25 kHz$$. The value of k is:

In the following circuit, the values of current flowing in the circuit at f=0 and f=$$\infty$$ will respectively be

The reading of voltmeter and ammeter in the following figure will respectively be :

In the following diagram, the value of emf of A.C. source will be :

An inductance of 0.2 H and a resistance of 100$$\Omega $$ are connected in series to an A.C. 180 V, 50 Hz supply. The apparent current flowing in the circuit will be

An $$LCR$$ circuit has $$L=10\ mH, R=3\Omega$$, and $$C =1\mu$$ $$F$$ connected in series to a source of $$15 \cos\omega t$$ volt. The current amplitude at a frequency that is $$10\%$$ lower than the resonant frequency is:

The values of $$X_{L}, X_{C}$$ and R in series with an A.C.  circuit are 8$$\Omega $$ , 6$$\Omega $$ and 10$$\Omega $$ respectively. The
total impedance of the circuit will be ________$$\Omega $$