1.)A good electric conductor is one that  a. has low conductance b.has few free electrons c.produces a minimum voltage drop d.is always made of copper wire

Q: 4. Consider a wire created by joining two different materials to- gether. Io 1 2 Current flows…

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Q: 7. What does a diode do in a circuit?

A: 7. Diode do in a circuit

Q: 2. The large window air conditioner in Anita Breeze's room draws 11 amps of current. Determine the…

A: Given,  Current  i = 11 A Time  t =8 hr = 8×60×60 = 28800s Current is a measure of the flow of…

Q: 3. If two different wires having identical cross-sectional areas carry the same current, will the…

A: The average velocity due to electric field that an electron attains in a material is known as drift…

Q: 4 - A steady current of 0.50 A flows through a wire. What is the charge passing through the wire in…

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Q: 2. Explain the term internal resistance.

A: As we know resistance is a property of material which opposes the flow of current in a wire.

Q: Describe an electrical current and the difference between AC and DC current?

A: Current is due electron flow.

Q: An electric current of 210 amperes passes through the starter device in a car engine, if the voltage…

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Q: 2. Find the drift velocity, if the voltage is 4 V, length is 60 cm, area is 2 m², resistance is 5 kN…

A: Voltage (V) = 4 volts Length (L) = 60 cm = 0.6 m Area (A) = 2 m2Resistance (R) = 5000 ohm Number of…

Q: 1 - Which of the following must occur before we can talk about a current? A) (-) loads should move…

A: 4 scenarios are given and we are expected to tell which one of the scenario causes current flow.

Q: 2. Find the drift velocity, if the voltage is 4 V, length is 60 cm, area is 2 m, resistance is 5 kQ…

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Q: dissipated

A: Resistance =30 Current = 2 Energy needs to be find out.

Q: What will happen to current passing through a conductor if potential difference across it is doubled…

A: What will happen to current passing through a conductor if potential difference across it is…

Q: How we plus-minus current signs determined? Explain why the kitchen lights become dimmer when a…

A: Kirchhoff's current law: The current flowing into a node should be equal to the current flow out…

Q: 3. In a test on breakdown voltages, V kilovolts, for insulation for different thicknesses, t…

A: The relation between the breakdown voltage (V) and thickness of  the insulator (t) is given as :…

Q: 1: Suppose you have 10 light bulbs each of 100 Watt at your home. All of them are used for 6 hours…

A: 1.We know that, Energy=power×time To calculate the cost of energy for electrical energy…

Q: 4. What is the resistance of an immersion heater that increases the temperature of 1.0 kg of water…

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Q: 5.A lab has a new material they must test in order to determine its nature. Which test will…

A: "Since you have asked multiple questions, as per instructions to us, we will solve the first…

Q: 1. Study the circuit shown and answer the following questions (the capacitor is completely…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: 3. You have a 12.0-V motorbike battery with a charge capacity of 5000 C and a 12.0-V automobile…

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Q: Lucía, a young woman from Veracruz, uses a hair straightener every morning to straighten it and…

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Q: 10. An electrical appliance operates by applying 230 volts across a 50-ohm resistive load. a.…

A: Given values -  Voltage = 230 V  Resistance = 50 ohm    According to ohm's law -  V = IR .....(1)

Q: 3. A CFL or compact fluorescent lamp uses less energy that its equivalent incandescent bulb. How…

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Q: 5. A constant current source supplies a electric current of 200 mà to a load of 2kN. When the load…

A: Write the given values with the suitable variables. I1=200 mA=200×10-3 AR1=2 kΩ=2×103 ΩR2=50 Ω

Q: 9. Sketch the t-V relationship of a sawtooth wave that varies between ground and 5V, with a…

A: Solution

Q: .Below is the panel of a Voltmeter that measures voltage in an electrical circuit. Since the unit of…

A: In the figure, we can see there are 10 divisions between 0-5 volts. 10 division = 5 volts 1 division…

Q: If a voltage is doubled and resistance is halved in a circuit, what is the relationship of the new…

A: Given data: New voltage (V') = 2V New resistance (R') = R/2 Required: Relationship of the new…

Q: 1.Who is the famous bookbinder who used to read the scientific books he was binding and developed a…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: 4. Which wire will produce a dimmer bulb? 5. Which wire offers greater resistance to current flow?…

A: AWG wiresize (solid) Resistance per1000 m (ohms) 12 5.21 18 20.9 Since Resistance per…

Q: An electric current in a conductor varies with time according to the expression I(t) = sin (t),…

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Q: (1) Some Christmas tree lights have a characteristic that when one light (filament) burns out, the…

A: Case 1: Most Christmas light have their lights connected in series connection. Due to this fact,…

Q: 5. What feature of a river is most similar to current in an electric circuit? (A) The depth of the…

A: The correct answer is option (d).

Q: 4. What value resistor will discharge a 1.0 µF capacitor to 10% of its initial charge in 2.0 ms?

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Q: 1. What is the current in a 15V circuit if the resistance is 30? 2. What is the current in a 120V…

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Q: 2. What is the voltage in an electric circuit with a current of 20 A and a resistance of 6 Q?

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Q: 3-What happens to the total resistance in a parallel circuit as more resistors are added in…

A: Given:- 3)What happens to the total resistance in a parallel circuit as more resistors are added in…

Q: 3- Why does the resistivity of superconductors become zero?

A: given statement - " why the resistivity of superconductors become zero" ?

Q: 12. Give two examples of electrical devices that are based on transistors.

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Q: 1. You are asked to measure a current with an ammeter with many scales. In what order do you use…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: What basic principles should be observed to stay safe when dealing with electricity or working with…

A: The principles to stay safe when working with electrical equipment are: Test instruments before you…

Q: 6) In recent class lectures, we discussed the temperature dependence of the electrical resistivity,…

A: Conductors are those materials that have a positive temperature coefficient. Thus, In conductors,…

Q: A total of 620 C

A: Solution: Given that Q = 620 C passes through a flashlight in 0.550 h to find the current

Q: 3. A fluorescent lamps has a resistance of 300 N. If such a lamp is connected to a 110 V voltage…

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Q: Show that operating a 100-W lamp continuously for 1 week when the power utility rate is 150¢/kWh…

A: Power = Work/ time and Energy = Power ×time A week is 168 hours, the energy consumption would…

Q: _______________1. Is the law that governs the relationship among current, voltage, and resistance in…

A: Answers:- 1. ohm's law is the law that governs the relationship among current, voltage, and…

Q: 4. A conductor is? a. material that current can pass through c. material that current cannot pass…

A: Introduction: A conductor is a material that allows the flowing of charge from one end to another…

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.