Alternating Cur...

A waveform has a baseline of $$3 V$$, a duty cycle of $$20$$%, and an amplitude of $$8 V$$. The average voltage value is

A $$6 kHz$$ sinusoidal voltage is applied to a series RC circuit. The frequency of the voltage across the resistor is

A resistor and a capacitor are in series across a $$20 V$$ ac source. Circuit impedance is $$4.33 k \Omega$$. Current flow in the circuit is

In a parallel RC circuit, there is $$100 mA$$ through the resistive branch and $$100 mA$$ through the capacitive branch. The total rms current is

A resistor $$R$$, an inductor $$L$$ and capacitor $$C$$ are connected in series to an oscillator of frequency $$n$$. If the resonant frequency is $${ n }_{ r }$$, then the current lags behind voltage, when

The rms value of a.c. voltage with peack of $$311 V$$ is

The average half-cycle value of a sine wave with a $$40 V$$ peak is

A sine wave with an rms value of $$12 V$$ is riding on a dc level of $$18 V$$. The maximum value of the resulting waveform is

The instantaneous emf and current equations of an RLC series circuit are
$$e=200\sin { \left( \omega t-\dfrac { \pi  }{ 6 }  \right)  } $$
$$i=20\sin { \left( \omega t+\dfrac { \pi  }{ 6 }  \right)  } $$
The average power consumed per cycle is

An LC resonant circuit contains a capacitor $$400 pF$$ and an inductor $$100 \mu H$$. It is set into oscillations coupled to an antenna. Calculate the wavelength of the radiated electromagnetic wave.