Figure 21.43 A switch is ordinarily in series with a resistance and voltage source. Ideally, the switch has nearly zero resistance when closed but has an extremely large resistance when open. (Note that in this diagram, the script E represents the voltage (or electromotive force) of the battery.)

Q: Calculate the terminal voltage for a battery with an internal resistance of 0.835 N and an emf of…

A: Let R be the resistance, r be the internal resistance of the battery, then the terminal voltage is…

Q: 16. What is the power dissipated in Watts by the 9-ohm resistor? Write the answer in whole number.…

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Q: What is the power dissipated in the 202 resistor when = 20 V? 40 N 30 Ω 30 2 30 2 Lum 20 N

A: The electrical power is given by  P  = I2 R where, I is the current and R is the resistance.  The…

Q: When a voltmeter is connected across the terminals of a resistor, what usually happens to the…

A: When voltmeter is connected across the resistor, then the potential difference across the resistor…

Q: A galvanometer has a coil resistance of Rgalv V = 275.0 V. If the galvanometer deflects full scale…

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Q: A galvanometer has a coil resistance of Rgalv=97.2 Ω. It is to be made into an ammeter with a…

A:

Q: When working with high-power electric circuits, it is advised that whenever possible, you work…

A:

Q: Pind the voltages through the vesistors of the network in the Pigure Using Superposition therarem.…

A: Given data, R1=220 Ω R2=330 ΩR3=470 Ω Batteries in the circuit = 12 V and 6 V

Q: For the following circuit in the fiqure below, What is the current (in units of A) in the 10-0…

A: First find the equivalent resistance of the circuit,  The resistance 5Ω, 10Ω and 5Ω are connected in…

Q: Power packs should have substantial overcapacity both with regard to voltage as well as current.…

A: Power packs should have substantial overcapacity both with regard to voltage as well as current.…

Q: and in the in Figure are 21 A 14 A, respectively. a) Find the power supplied by each voltage source.…

A:

Q: In dealing with the relationship between Voltage (V), Current (I), and Resistance (R), Ohm’s law is…

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Q: What current runs through a 4.8 ohm fan when hooked into a 120 V socket? Answer: Check e DELL

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Q: Verify that the units of ΔΦ / Δt are volts. That is, show that 1 T ⋅ m2 / s = 1 V .

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Q: A certain appliance draws 22 A across 25 V power source, how much will a spend if I use it for 8…

A:

Q: You are told that a certain voltage will be between 3 V and 5 V, and are given a non- autoranging…

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Q: When a voltmeter is connected across the terminals of a resistor, what usually happens to the…

A: The voltmeter is a device which is used to measure the potential difference between two points.

Q: Calculate the power dissipated in each resistor. (series-parallel circuit) V =V, R, 382 E =V +V, E…

A: As we see in the circuit, R2 and R3 are in parallel and their combination Rp is in series with R1.…

Q: I tried putting the resistor value for 8.736 ohms yet the answer is incorrect. Are my units wrong or…

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Q: What is the purpose of the resistor connected in series with the galvanometer in a Wheatstone…

A: At the instant, when a galvanometer is connected with a high resistance resistor in series then it…

Q: Find the power dissipated by the 45- ohm resistor (^ SEURS. D) ww R1 50 Ω +V2 220 V TUOTE R4 200 Ω…

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Q: How much power is produced with a 10 Volt battery delivering its current to a 10 Ohm resister?

A: Given : Voltage = 10 V Resistor = 10 Ohm Required : Power, P

Q: Given a parallel circuit with three resistors and a total voltage of 15, R1 = 10 Q, R2 = 20 2, and…

A: Answer:-  Given  Resistance (R1) = 10 ohm  Resistance (R2) = 20 ohm  Resistance (R3) = 30 ohm…

Q: Design a circuit with a bulb, resistor(s), capacitor, and battery where the bulb gradually decreases…

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Q: A device (such as a light bulb)  experiences a voltage drop of 4.0 V across it while a DC current of…

A: The power dissipated by the device will be the product of the voltage drop across it and the current…

Q: 2.2 Use Thevenin's theorem to find the current flowing in the 6 Q resistor shown in the Figure below…

A: From the question, it is given that- External voltage: V = 40 V R1=5ΩR2=4ΩRL=6Ω

Q: Would your headlights dim when you start your car’s engine if the wires in your automobile were…

A: The car battery has low resistance, when it is switched on a large current will flow and this…

Q: THree ldentical resistors wit emf of 18.0 V and zero interna of the resistor network. (b) Fin

A: Equivalent Resistance in series R = R1 + R2  equivalent resistance in parallel 1/R = 1/R1 + 1/R2

Q: As more resistors are added in series across a constant voltage source, the power supplied by the…

A: Given data: Resistors added in series Voltage source is constant

Q: +4.75 4.141, determine the value of For the circuit in Fig. Rsuch that the maximum power delivered…

A: Given : (Load)  PMax = 3mW  Now, firstly we will find out RTH As per the figure, 1RTH=1R+1R+1R…

Q: Suppose a parachutist lands on a high-voltage wire and grabs the wire as she prepares to be rescued.…

A: For a circuit to have a potential difference, it should be closed. Any open circuit will have no…

Q: If you were to place a 3kΩ resistor across a 9 volt battery, what is the power dissipated from this…

A: Given data:  Resistance (R) = 3 kΩ = 3000 Ω Battery (V) = 9 V Required: Power (P)

Q: What is true in general about the voltage (potential) supplied by the battery compared with the drop…

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Q: Why is it more dangerous to turn on an electric appliancewhen you are standing outside in bare feet…

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Q: As the load resistance in parallel connection is increased, what happens to current? How about the…

A: Concept:- The given problem can be resolved using the concept of Ohm's law. According to Ohm's law,…

Q: A galvanometer has a coil resistance of Realy = 41.4 Q. It is to be made into a voltmeter with a…

A: Given Data: The resistance of galvanometer is, RG =41.4 Ω. The full scale voltage of voltmeter is,…

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.