Circuit Math
A circuit has 24V applied across a 12Ω resistor. What is the current?
What is 2 amps?
In a crystal oscillator, the feedback path is located relative to the crystal in this way.
What is through the same path as the crystal?
Increasing forward bias causes diode resistance to do this.
What is decrease?
A JK flip-flop in toggle mode produces this output frequency.
What is half the input frequency?
A blown fuse will read this resistance on an ohmmeter.
What is infinite resistance?
An AC circuit has R = 6Ω and XL = 8Ω. What is the total impedance?
What is 10 ohms?
This filter rejects a specific band of frequencies.
What is a band-reject filter?
Increasing input voltage causes Zener current to do this.
What is increase?
A JK flip-flop with J = 1 and K = 0 results in this state.
What is set?
A shorted resistor will show this voltage drop.
What is 0 volts?
A filter has R = 1,000Ω and C = 0.1µF. What is the cutoff frequency?
What is about 1591 Hz?
This filter allows a range of frequencies to pass.
What is a band-pass filter?
A partial short in a transformer secondary causes this output condition.
What is low output voltage?
A full adder with inputs 1, 0, and carry-in 1 produces this output.
What is Sum = 0, Carry = 1?
An open resistor will show this voltage behavior.
What is full voltage drop?
An AC signal has a peak voltage of 170V. What is the RMS voltage?
What is 120 volts?
In a band-pass filter, frequencies outside the passband will do what?
What is be attenuated (reduced)?
Why does a Zener diode maintain constant voltage?
What is breakdown region operation?
Why does an AND gate output LOW if any input is LOW?
What is all inputs must be HIGH?
Why does increasing load increase ripple voltage?
What is the capacitor discharges more between cycles?
A transformer has 100 primary turns and 25 secondary turns. If the primary voltage is 120V, what is the secondary voltage?
What is 30 volts?
What two conditions are required for sustained oscillation?
What is correct phase shift and loop gain = 1?
A component with 0V drop while current flows indicates what failure?
What is a short circuit?
Why does a JK flip-flop divide frequency by 2 in toggle mode?
What is it changes state every clock pulse?
A component reads 0V while others show voltage. What is the fault?
What is a shorted component?