You have created a simple electrical circuit with a battery, wires, and a light bulb. Which of the following is true about this circuit? (Choose two answers.) a. The battery’s positive lead pushes current away from that lead, and c. The circuit creates a direct current.
Figure 2 shows a circuit with a resistor R = 1.0 × 103 Ω, and a battery with potential difference of VB = 5.0V . (a) Solve the circuit in Figure 2. That is, find all unknown currents, voltages, and resistances. (b) What is the direction of the current? Note: I want the direction of the conventional current.
d. The amplitude is 1 volt. 3. A PC NIC and a switch port create one electrical circuit to use when sending data from the PC to the switch. Which of the following tasks is a function done by the transmitter? (Choose two answers.)
1. You have created a simple electrical circuit with a battery, wires, and a light bulb. Which of the following is true about this circuit? (Choose two answers.) b,c 2.
On the other hand covalent bonds, the intermolecular forces are very weak and is easily broken,hence lesser heat is required and thus covalent bonds have lower melting and boiling points. Do ionic compounds conduct electricity as: (3 points) Solids? No Liquids? Yes Aqueous solutions (when the ionic compounds are dissolved in water)? Yes Do covalent compounds conduct electricity as: (3 points) Solids?
ENIAC stands for __________. a. Electrical Numerical Integrator and Calculator b. EDVAC Nearly Integrated Accumulator Computer c. Estimating Nano Integrator and Computer d. Electronic Nuclear Interconnected Accumulator Calculator 3. Who is credited with creating the stored program computer model? a. Atanasoff b. Berry c. Eckert d. von Neumann 4. Limits to computing power are caused by throughput bottlenecks between the CPU and__________.
A 17. D 18. A and D 19. C 20. B, C and D Electrical Circuit – an electrical device that provides a path for electrical current to flow Frequency – The cycles per second of alternating current, measured in Hertz Amplitude – the maximum difference of an alternating electric current or potential from the average value Phrase – is a position of a point in time on a waveform cycle Bit time – the time it takes for one bit to be ejected from a network interface card at a standard speed Encoding Scheme – a system used by computers to represent data as characters Unshielded twisted-pair – The word unshielded refers to the fact that UTP cables have no added shielding materials to prevent EMI problems Core- The light source on one end of the cable shines light into the core Cladding- surrounds the core, for the entire length of the cable, and reflects the light into the core Radio waves- work well for networking because as a waveform, radio waves can be changed (modulated) over time to send data.
a. The battery's positive lead pulls current toward the lead. c The circuit creates a direct current. 2. A PC NIC and a switch port create one electrical circuit to use when sending data.
DataQuest Properties of Solutions: Electrolytes and Non-Electrolytes 22 In this experiment, you will discover some properties of strong electrolytes, weak electrolytes, and non-electrolytes by observing the behavior of these substances in aqueous solutions. You will determine these properties using a Conductivity Probe. When the probe is placed in a solution that contains ions, and thus has the ability to conduct electricity, an electrical circuit is completed across the electrodes that are located on either side of the hole near the bottom of the probe body (see Figure 1). This results in a conductivity value that can be read by a datacollection interface. The unit of conductivity used in this experiment is the microsiemens per centimeter, or µS/cm.
The panel that converts light energy into electrical energy is called a Photovoltaic panel. Light energy is not only used industrially and privately, but some of our vehicles run on part solar electric or entirely on solar electric. The light energy is collected through a panel on the vehicle, which is transferred to electrical energy that hits the motor; the motor then converts the electrical energy into mechanical energy, which turns the drive shaft that turns the wheels (kinetic energy). Not all energy transfer is perfect, there will always be a loss of energy in any system. The loss of energy will come from the electrons passing through any wires, released as heat energy.