An electric current passing through a wire will produce around the conductor:
  1. an electric field 2. a magnetic field 3. an electrostatic field 4. none of the above

      The unit used to indicate the value of inductance is the:
1. ohm 2. farad 3. volt 4. henry

     The effect of inductance in a coil is to:
1. oppose the change in the flow of current 2. oppose the change in the value of resistance 3. prevent the current from dropping to zero 4. prevent the current from being short circuited

     An inductance of 10,000 microhenries may be stated correctly as:
1. 10 henries 2. 100 millihenries 3. 10 millihenries 4. 1,000 henries

Two 12 millihenry chokes are wired in parallel. The total inductance is:
1. 3 millihenries 2. 6 millihenries 3. 12 millihenries 4. 12 henries

The ability to store electrical energy in an electrostatic field is called:
1. inductance 2. farads 3. capacitance 4. battery action

The fixed plates in a variable capacitor are called the:
1. rotors 2. dielectric 3. switching plates 4. stators

The material which separates the plates of a capacotor is called the:
1. dielectric 2. semiconductor 3. resistor 4. lamination

A 0.01 uF capacitor is formed from 2 metal plates separated by air. The capacitor could be changed to 0.02 uF by:
1. bringing the metal plates closer together 2. making the plates smaller in size 3. charging the capacitor to a higher voltage 4. touching the 2 plates together

Which of the following factors most affect capacitance:
1. thickness of the dielectric 2. surrounding magnetic field 3. capacitor working voltage 4. resistance between the plates

Three 15 picofarad capacitors are wired in parallel. The capacitance of the combination is:
  1. 45 picofarads 2. 18 picofarads 3. 12 picofarads 4. 5 picofarads

      Three 15 microfarad capacitors are wired in series. The total capacitance of this arrangement is:
1. 45 microfarads 2. 18 microfarads 3. 12 microfarads 4. 5 microfarads

     Both capacitors and inductors can oppose alternating current (AC). This opposition to AC is reffered to as:
1. resistance 2. resonance 3. conductance 4. reactance

     The reactance of capacitors increases as:
1. AC frequency increases 2. AC frequency decreases 3. applied voltage increases 4. applied voltage decreases

Z is the abbreviation for:
1. impedance 2. reactance 3. electromotive force 4. inductance

The unit of measure of impedance is:
1. ampere 2. farad 3. henry 4. ohm

Parallel tuned circuits offer:
1. very high impedance at resonance 2. low impedance at resonance 3. zero impedance at resonance 4. an impedance equal to the resistance of the circuit

In inductance, AC may be opposed by both the resistance of the winding wire and reactance due to inductive effect. The term which includes resistance and reactance is:
1. resonance 2. capacitance 3. inductance 4. impedance

Resonance is the condition that exists when:
1. inductive reactance is the only opposition in the circuit 2. inductive reactance and capacitive reactance are equal 3. the circuit contains no resistance 4. resistance is equal to the reactance

Resonance is an electrical property used to describe:
1. an inductor 2. the frequency characteristic of a coil and capacitor circuit 3. a set of parallel inductors 4. the results of tuning a varicap