48851. Which one of the following statements is true for the currents in a parallel RL circuit?
48852. What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with an inductor that has a reactance of 200 W?
48853. The nucleus of the copper atom contains how many protons?
48854. Which one of the following statements is true for voltage in a series circuit?
48855. A basic capacitor is composed of:
48856. Which one of the following devices is most often used for measuring electrical potential difference?
48857. Which one of the following equations most directly determines the power dissipation of a resistance when you know the voltage drop and amount of resistance?
48858. The equivalent of 1 megohms is:
48859. Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it?
48860. Suppose a current source has an Ideal current of 10 mA and an internal resistance of 20 MW. For what values of load resistance will the current source appear stiff?
48861. If the current gain is 200 and the collector current is 100 mA, the base current is
48862. Which one of the following statements is true for the voltages in a series RL circuit?
48863. The core of an electromagnet is said to be in saturation when:
48864. As the temperature increases, the current gain
48865. Assuming 100% efficiency, what is the power being consumed at the secondary winding of the transformer described in question 91?
48866. Doubling the diameter of the coil in an inductor:
48867. Which one of the following statements is true for the impedance of a series RC circuit?
48868. If a transistor operates at the middle of the load line, an increase in the current gain will move the Q point
48869. What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding?
48870. What is the inductive reactance of a 0.1-H coil that is operating at 1000 Hz?
48871. Which one of the following is a statement of KirchhofFs voltage law?
48872. What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm?
48873. Current can flow through a normally open push button switch as long as:
48874. Doubling the operating frequency of a purely capacitive circuit:
48875. How much current flows through a 0.02 micro F capacitor that is operating from a 12-V ac, 100-Hz source?
48876. An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current?
48877. The total capacitance of a series capacitor circuit is:
48878. Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question?
48879. To get the Thevenin voltage, you have to
48880. Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit?
48881. ”Sadhu Jana Paripalana Yogam”was founded by:
48882. When operating above its resonant frequency, a parallel RLC circuit has the characteristics of a:
48883. Doubling the operating frequency of an inductive circuit:
48884. A circuit has a Norton current of 10 mA and a Norton resistance of 10 kW. What is the Thevenin circuit?
48885.
Read the following passage and answer the questions.
Passage:
Tutankhamen was Pharoah of Egypt from 1361 to 1352 BC. He died at the early age of nineteen and was buried in a tomb in the Valley of the Kings, on the west bank of the river Nile. Not much is known about the life of this king or why he died so young. In fact, we would never have heard of him if not for the magnificent treasures found in his tomb. All the other tombs in the Valley of the Kings had been robbed in ancient times. But nobody knew about Tutankhamen's tomb for hundreds of years. Hence, there was a great deal of excitement when his tomb was discovered by two Englishmen. One of them, Howard Carter, was a professional archaeologist. The other, Lord Camarvon, was a rich man interested in archaeology and who generously spent his money on excavations. For four years, from 1917 to 1922, they had been excavating in the Valley of the Kings without finding anything new. They were on the verge of giving up when a step appeared as Carter was clearing some stones near a royal tomb. He excavated further and unearthed a breathtaking collection of treasures in a tomb, all buried with Tutankhamen 3274 years ago! However, the story of Tutankhamen did not end there. Some Egyptians believed that according to an ancient curse anyone who touched Tutankhamen's tomb would die. Most people laughed at the idea of the curse coming true. However, when the last man climbed out of the tomb, a sudden sandstorm blew up and people saw a hawk, the ancient royal symbol of Egypt, fly overhead. Locals took this to mean that the spirit of the dead king had left his tomb, cursing those who had opened it. Five months later, Lord Camarvon, died of an infected mosquito bite on his cheek.Which ONE of the following statements is TRUE?
48886. A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding?
48887. If a load resistance is 1 kW, a stiff voltage source has a resistance of
48888. A typical light switch in your home is a:
48889. Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage?
48890. A device that converts thermal energy to electrical energy is called a:
48891. How much power is being dissipated by a 1000 W resistance that has 25 V applied to it?
48892. A device that converts chemical energy to electrical energy is called a:
48893. Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value?
48894. What is the difference between a conductor and an insulator?
48895. A circuit has two different voltage sources that are connected in a series-aiding form. If the sources are rated at 6 V and 9 V, what is the total source voltage?
48896. At room temperature an intrinsic semiconductor has
48897. If the base supply voltage increases, the Q point moves
48898. Positive ions are atoms that have
48899. Which one of the following is a statement of Kirchhoffs current law?
48900. Who said “Give me blood and I will give you freedom”?
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