May 2016

11. If you increase the rotational speed of the conductor in a basic generator, the frequency of the resulting sine wave voltage will increase. A.     True    B.     False […]

6. The instantaneous voltage at 120° on a 5 V peak sine wave equals about –4.33 V. A.     True    B.     False Answer & Explanation Answer: Option B Explanation:

1. One revolution of a conductor through the magnetic field of a basic generator will produce two complete sine waves. A.     True    B.     False Answer & Explanation Answer:

16. What is the average voltage when a rectangular wave’s base line voltage is 20 V, its peak-to-peak voltage is 50 V, and its duty cycle is 20%? A.   

6. What is the instantaneous peak voltage at 250° on a 6 V peak sine wave? A.     +5.64 V B.     –5.64 V C.     +26.13 V D.   

1. What type of waveform is shown in the given circuit? A.     Sine wave B.     Square wave C.     Triangle wave D.     Sawtooth wave Answer & Explanation

26. Which unit of charge contains 6.25 × 1018 electrons? A.     An ampere    B.     A coulomb C.     A volt    D.     A joule Answer & Explanation Answer:

21. One coulomb passing a point in one second is one: A.     ampere    B.     volt C.     ohm    D.     charge Answer & Explanation Answer: Option A Explanation:

26. Which unit of charge contains 6.25 × 1018 electrons? A.     An ampere    B.     A coulomb C.     A volt    D.     A joule Answer & Explanation Answer:

21. One coulomb passing a point in one second is one: A.     ampere    B.     volt C.     ohm    D.     charge Answer & Explanation Answer: Option A Explanation:

16. Which voltage source converts chemical energy to electrical energy? A.     Electrical generator B.     Battery C.     Solar cell D.     Electronic power supply Answer & Explanation Answer:

11. A voltmeter is used: A.     to measure current B.     in series with the circuit C.     in parallel with the circuit D.     to measure coulombs Answer

6. The battery symbol is: A.     mca1_1009a1.gif B.     mca1_1009b1.gif C.     mca1_1009c1.gif D.     mca1_1009d1.gif Answer & Explanation Answer: Option B Explanation: No answer description available for this

1. What is the color code for a 220 omega.gif 5% resistor? A.     Red, Red, Brown, Gold B.     Orange, Orange, Black, Gold C.     Red, Red, Black, Gold