Alternating Cur...

A resistance of $$ 10\Omega $$, a
capacitance of $$ 0.1\mu F$$ and an inductance of $$2mH$$ are connected in
series  across a source of alternating
emf of  variab frequency. At what frequency  does maximum current flow?

The frequancy of oscillation of current in the inductor is-

The equation of an alternating voltage is $$V=100\sqrt {2}\sin {100\pi t}$$ volt. The RMS value of voltage and frequency will be respectively

An alternating power supply of $$220 V$$ is applied across a series circuit of resistance $$10\sqrt{3}\Omega$$, capacitive reactance $$40 \Omega$$ and inductive reactance $$30 \Omega$$. The respective current in the circuit for zero and infinite frequencies are

A coil has resistance $$30 \Omega $$ and inductive reactance $$20 \Omega $$ at $$50 Hz$$ frequency.If an ac source of $$200 V,100Hz$$ is connected across the coil ,the current in the coil in the coil will be 

Figure shows a long straight conductor carrying current i. A square loop of side a is kept at a distance r from it. Which of the following is correct?

A L - C resonant circuit contains a 200 pF capacitor and a $$ 100 \mu $$ H inductor it is set into oscillation coupled to an antenna. The wavelength of the radiated electromagnetic waves is

In L-C-R series circuit consists of a resistance of 10 $$\Omega$$ a capacitor of reactance 6.0 $$\Omega$$ and an inductor coil. The circuit is found to resonate when put across a 300 V, 100 Hz supply. The inductance of coil is (Take $$\pi$$ = 3)

The sinusoidal potential difference $$V_1$$ shown in figure applied across a resistor $$R$$ produces heat at a rate $$W$$. what is the rate of heat dissipation when the square waves potential different $$V_2$$ as shown in figure is applied across the resistor?

In a series LCR circuit,the inductive reactance is twice the resistance and the capacitance reactance is $${\frac{1}{3}^{rd}}$$ the inductive reactance. The power factor of the circuit is: