1. When all parts of a circuit are composed of conducting materials, the circuit is said...

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1. When all parts of a circuit are composed of conducting materials, the circuit is said to be A. parallel. B. open. C. shorted. D. closed. 2. The unit for measuring electric power is the A. volt. B. ampere. C. watt. D. ohm. 3. A unit for measuring frequency is the A. hertz. B. watt. C. ampere. D. ohm. 4. A PNP transistor is connected in a circuit so that the collector-base junction remains reverse biased and the emitter-base junction is forward biased. This transistor can be used as a power amplifier because A. the output voltage will be much larger than the input voltage. B. the output current will be much smaller than the input current. C. the output voltage will be much smaller than the input voltage. D. the output current will be much larger than the input current. 5. To use your left hand to determine the direction of the voltage developed in a moving conductor in a stationary magnetic field, you must point your A. forefinger in the direction of the motion. B. forefinger in the direction of the lines of force. C. thumb in the direction of the magnetic flux. D. thumb in the direction of the electromagnetic force. 6. Suppose that you're facing a straight current-carrying conductor, and the current is flowing toward you. The lines of magnetic force at any point in the magnetic field will act in A. the direction opposite to the current. B. the same direction as the current. C. a counterclockwise direction. D. a clockwise direction. 7. What bias conditions must be present for the normal operation of a transistor amplifier? A. The emitter-base junction must be reverse biased, and the collector-base junction must be forward biased. B. The emitter-base junction must be forward biased, and the collector-base junction must be reverse biased. C. Both junctions must be reverse biased. D. Both junctions must be forward biased. 8. Which of the following does not affect the electrical resistance of a body? A. Bodies directly surrounding the body B. Material composing the body C. Length of the body D. Temperature of the body 9. When an electron is displaced in a semiconductor, the hole that's left behind is A. attracted to the negative terminal of the voltage source. B. attracted to the anode of the voltage source. C. incapable of carrying a charge. D. considered an impurity in the crystal. 10. An example of an atom that has no charge is one that has A. 1 proton, 2 electrons, and 3 neutrons. B. 3 protons, 1 electron, and 3 neutrons. C. 2 protons, 2 electrons, and 1 neutron. D. 3 protons, 2 electrons, and 1 neutron. 11. In a cathode ray tube, the number of electrons that reach the fluorescent screen is controlled by the A. grid. B. anode. C. cathode. D. deflecting plate. The following question is based on the figure below. SI A. B. Switch SS C. Switch S3 D. Switch S2 Device Device Device Device C. allow current flow between its plates. D. increase circuit power. B. alternating current. C. resistance. D. voltage. 12. If you want to stop the current flow through Device 3 in the circuit shown above, which one of the following single switches should you open? Switch S4 $2 13. The function of a capacitor in an electric circuit is to A. store electric charges. B. measure the amount of current in the circuit. B. 3 ohms. C. 16 ohms. D. 0.0625 ohms. $3 Device 14. The ability to regulate the amount of charge flowing in a circuit is A. direct current. 15. If an electrically uncharged body is contacted by an electrically charged body, the uncharged body will A. neutralize the charged body. B. develop the opposite charge as the charged body. C. develop the same charge as the charged body. D. remain a neutrally charged body. 16. A circuit contains two devices that are connected in parallel. If the resistance of one of these devices is 12 ohms and the resistance of the other device is 4 ohms, the total resistance of the two devices is A. 0.333 ohms. 17. A battery consists of five dry cells connected in series. If the voltage developed by each cell is 1.5 V, the total voltage developed by the battery is A. 1.5 V. B. 5.0 V. C. 0.3 V. D. 7.5 V. 18. If a bar of copper is brought near a magnet, the copper bar will be A. repelled by the magnet. B. made into an induced magnet. C. unaffected by the magnet. D. attracted by the magnet. 19. A transmission system at a radio station uses a/an frequency alterating current. A. transmitting antenna B. demodulator C. oscillator D. modulator 20. The part of the atom that accounts for electricity is the A. neutron. B. electron C.proton. D. nocleus. 21. The available source of charge that pushes a charge through a circuit is A. resistance. B. alternating current. C. voltage. D. direct current. 22. The grid in a high-vacuum triode is usually kept negatively charged with respect to the cathode so that the electrons may be A. attracted to the cathode instead of the grid. B. attracted to the anode instead of the grid. to convert a direct current into a high C. accelerated toward the anode. D. accelerated toward the cathode. 23. If one body is positively charged and another body is negatively charged, free electrons tend to A. remain in the negatively charged body. B. move from the negatively charged body to the positively charged body. C. move from the positively charged body to the negatively charged body. D. remain in the positively charged body. 24. The relationship between a cathode and an anode involves A. electrons. B. neutrons. C. protons. D. diodes. 25. of the following frequencies falls in the range of RF waves used by commercial radio broadcasting stations? A. 6,000 Hz B. 60 Hz C. 600,000 Hz 1. When all parts of a circuit are composed of conducting materials, the circuit is said to be A. parallel. B. open. C. shorted. D. closed. 2. The unit for measuring electric power is the A. volt. B. ampere. C. watt. D. ohm. 3. A unit for measuring frequency is the A. hertz. B. watt. C. ampere. D. ohm. 4. A PNP transistor is connected in a circuit so that the collector-base junction remains reverse biased and the emitter-base junction is forward biased. This transistor can be used as a power amplifier because A. the output voltage will be much larger than the input voltage. B. the output current will be much smaller than the input current. C. the output voltage will be much smaller than the input voltage. D. the output current will be much larger than the input current. 5. To use your left hand to determine the direction of the voltage developed in a moving conductor in a stationary magnetic field, you must point your A. forefinger in the direction of the motion. B. forefinger in the direction of the lines of force. C. thumb in the direction of the magnetic flux. D. thumb in the direction of the electromagnetic force. 6. Suppose that you're facing a straight current-carrying conductor, and the current is flowing toward you. The lines of magnetic force at any point in the magnetic field will act in A. the direction opposite to the current. B. the same direction as the current. C. a counterclockwise direction. D. a clockwise direction. 7. What bias conditions must be present for the normal operation of a transistor amplifier? A. The emitter-base junction must be reverse biased, and the collector-base junction must be forward biased. B. The emitter-base junction must be forward biased, and the collector-base junction must be reverse biased. C. Both junctions must be reverse biased. D. Both junctions must be forward biased. 8. Which of the following does not affect the electrical resistance of a body? A. Bodies directly surrounding the body B. Material composing the body C. Length of the body D. Temperature of the body 9. When an electron is displaced in a semiconductor, the hole that's left behind is A. attracted to the negative terminal of the voltage source. B. attracted to the anode of the voltage source. C. incapable of carrying a charge. D. considered an impurity in the crystal. 10. An example of an atom that has no charge is one that has A. 1 proton, 2 electrons, and 3 neutrons. B. 3 protons, 1 electron, and 3 neutrons. C. 2 protons, 2 electrons, and 1 neutron. D. 3 protons, 2 electrons, and 1 neutron. 11. In a cathode ray tube, the number of electrons that reach the fluorescent screen is controlled by the A. grid. B. anode. C. cathode. D. deflecting plate. The following question is based on the figure below. SI A. B. Switch SS C. Switch S3 D. Switch S2 Device Device Device Device C. allow current flow between its plates. D. increase circuit power. B. alternating current. C. resistance. D. voltage. 12. If you want to stop the current flow through Device 3 in the circuit shown above, which one of the following single switches should you open? Switch S4 $2 13. The function of a capacitor in an electric circuit is to A. store electric charges. B. measure the amount of current in the circuit. B. 3 ohms. C. 16 ohms. D. 0.0625 ohms. $3 Device 14. The ability to regulate the amount of charge flowing in a circuit is A. direct current. 15. If an electrically uncharged body is contacted by an electrically charged body, the uncharged body will A. neutralize the charged body. B. develop the opposite charge as the charged body. C. develop the same charge as the charged body. D. remain a neutrally charged body. 16. A circuit contains two devices that are connected in parallel. If the resistance of one of these devices is 12 ohms and the resistance of the other device is 4 ohms, the total resistance of the two devices is A. 0.333 ohms. 17. A battery consists of five dry cells connected in series. If the voltage developed by each cell is 1.5 V, the total voltage developed by the battery is A. 1.5 V. B. 5.0 V. C. 0.3 V. D. 7.5 V. 18. If a bar of copper is brought near a magnet, the copper bar will be A. repelled by the magnet. B. made into an induced magnet. C. unaffected by the magnet. D. attracted by the magnet. 19. A transmission system at a radio station uses a/an frequency alterating current. A. transmitting antenna B. demodulator C. oscillator D. modulator 20. The part of the atom that accounts for electricity is the A. neutron. B. electron C.proton. D. nocleus. 21. The available source of charge that pushes a charge through a circuit is A. resistance. B. alternating current. C. voltage. D. direct current. 22. The grid in a high-vacuum triode is usually kept negatively charged with respect to the cathode so that the electrons may be A. attracted to the cathode instead of the grid. B. attracted to the anode instead of the grid. to convert a direct current into a high C. accelerated toward the anode. D. accelerated toward the cathode. 23. If one body is positively charged and another body is negatively charged, free electrons tend to A. remain in the negatively charged body. B. move from the negatively charged body to the positively charged body. C. move from the positively charged body to the negatively charged body. D. remain in the positively charged body. 24. The relationship between a cathode and an anode involves A. electrons. B. neutrons. C. protons. D. diodes. 25. of the following frequencies falls in the range of RF waves used by commercial radio broadcasting stations? A. 6,000 Hz B. 60 Hz C. 600,000 Hz

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The detailed answer for the above question is provided below 1Option D is the correct answer When all parts of a circuit of conducting materials the circuit is said to be closed A loop must exist to a... View the full answer