A radio can tune over the frequency range of a portion of MW broadcast band : (800 kHz to 1200 kHz) .If its LC circuit has an effective inductance of `200 mu H`,what must be the range of its variable capacitor?

A radio can tune over a frequency range 400 kHz to 600 kHz of the medium wave band. If the L - C tuner circuit has an effective inductance of 0.2 mH, what must be the range of its variable capacitance of the capacitor?

A galvanometer has a resistance of 100 Omega and its full scale deflection current is 100 mu A . What shunt resistance should be added so that the ammeter can have a range of 0 to 10 mA ?.

In a series resonant circuit, the inductance coil is of 0.2 H and the resistance coil is of 50 Omega . What is the value of capacitance in the circuit for resonance to occur at a frequency of 1500 kHz? The source has an e.m.f. of 100 V r.m.s.?