Alternating Cur...

In an inductor, the current l varies with time t as i=5A+16 (A/s) t. If induced emf in the inductor is 5 mV, the self inductance of the inductor is 

A magnet is moving towards the coil  along the axis and the emf induced tin the coil is 'e' if the coil also starts moving towards the magent with same speed.  the induced emf will be 

For an alternating current of frequency $$\dfrac { 5 }{ \pi } Hz$$ in $$L-C-R$$ series circuit with $$L-1H,C-1{ \mu }{ F }_{ R }-100 { \Omega }$$ impedance is :-

yf the frequency of the source e.m.f. in an AC circuit is $$n$$ , the power varies wath a frequency 

For a series LCR circuit at resonance, the statement which  is not true:-

The current (i) in the inductance is varying with according to the plot shown in figure.
Which one of the following is the correct variation of voltage with time in the coil?

A coil of induction $$0.5\ H$$ is connected to a $$18\ V$$ battery. The rate of growth of current in the inductor, just after the switch $$'S'$$ is closed.

An alternating source of frequency $$\nu$$ is connected to a series LCR-circuit. The graph that best represents the variation of the current $$I$$ with the frequency of the applied ac is

An LCR circuit as shown in the figure is connected to a voltage soruce $$V_{ac}$$ whose frequency one be varied.
The frequency, at which the voltage across the resistor is maximum, is :

As the frequency of an alternating current increases, the impedance of the circuit