Attempt all the questions. There is only one correct answer to each question. Click to show all questions. When you have completed the quiz press the back button to return to your last page.
A tuned circuit consists of either
A resistor and capacitor in series or parallel
An inductor and capacitor in series or parallel
A resistor and inductor in series or parallel
A cell and inductor in series or parallel
In a tuned circuit the resonant frequency is:
The rate of exchange of resistance between cpacitor and inductor
The rate of exchange of current between cpacitor and inductor
The rate of exchange of energy between cpacitor and inductor
The rate of exchange of volts between cpacitor and inductor
A tuned circuit is resonant at 7.03 MHz. Which of these will decrease the resonant frequency?
Pulling the coil of wire in the inductor to take up more room
Decreasing the capacitance
Adding a capacitor in parallel with the circuit's capacitor
Adding a capacitor in series with the circuit's capacitor
At their resonant frequency
A series capacitor and inductor lower the impedance
A series capacitor and inductor raise the impedance
A parallel capacitor and inductor lower the impedance
A parallel capacitor and inductor have the same impedance as a series capacitor and inductor
A transformer can be used:
only to step up the voltage from the mains
only to step down the voltage from the mains
to either step up or down the voltage from the mains
To provide a smooth direct current from an alternating current