103g

Question 1

The amount of emf generated when cutting lines of flux depends on three factors

Answer 1

-Magnetic density flux
-Conductor length within the magnetic field
-rate of speed and the angle at which the conductor cuts the magnetic lines of flux

Question 2

If the alternator is spinning at 60 rotations pre second it produces

Answer 2

60 cycles per second

Question 3

The output frequency of an ac generator or alternator is determined by two factors

Answer 3

-The number of poles
-The revolutions per minute if the driven shaft

Question 4

Peak voltage is

Answer 4

Emax & Imax

Question 5

The values produced at any given instant in the cycle are

Answer 5

Instantaneous values

Question 6

If the supply voltage to a building is 120 V ac then the effective or rms valve is

Answer 6

120 V

Question 7

Unless otherwise indicated an ac meter reads

Answer 7

Effective values

Question 8

Three factors contribute to impedance in an ac circuit

Answer 8

Resistance, inductive reactance, capacitive reactance

Question 9

Inductance is the property of a circuit that

Answer 9

Opposes any change in current in that circuit

Question 10

Capacitance is the

Answer 10

Value of electrical energy established between an area of negative and positive electrical charge

Question 11

A dielectric is a poor conductor acting as an insulator but it can easily

Answer 11

Polarize or separate positive and negative charges

Question 12

A capacitor is an electrical component made from

Answer 12

Two plates of a conducting material separated by a dielectric