Why do transmission lines operate at very high voltages while household circuits operate at fairly small voltages?
Q: A student in the laboratory connects a 140 resistor, a 28 resistor, and a 32 Q resistor in series…
A: (a) The resistors are connected in series. Thus the equivalent resistance will be, R=R1+R2+R3 =14…
Q: An electric oven of 2 kW power rating is operated in a domestic electric circuit (220 V) that has a…
A: It is given that
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A: Capacitor is a device which is used to store charge. This device can store charge when small current…
Q: Explain how conservation of energy is related to Kirchhoff's voltage loop rule.
A: From the Kirchhoff's second law, The algebraic sum of the potential differences in a circuit loop…
Q: 2) What is the difference between series connection and parallel connection? Construct a comparison…
A: Difference between the series and parallel connection of the resistance in the circuit.
Q: A student in the laboratory connects a 17 Ω resistor, a 31 Ω resistor, and a 36 Ω resistor in series…
A: I=VR1+R2+R3=59 V17 Ω+31 Ω+36 Ω=0.70 A
Q: 61. Which diagram below shows correct current direction in a circuit segment? 5 A 5 A 5 A 5 A P. 2 A…
A:
Q: The circuit below includes a battery, four identical lightbulbs, and a switch (which is closed).…
A: Given,
Q: A student in the laboratory connects a 15 Ω resistor, a 25 Ω resistor, and a 41 Ω resistor in series…
A: Calculate the equivalent resistance in the circuit. Req=R1+R2+R3Req=15 Ω+25 Ω+41 ΩReq=81 Ω
Q: ..An electric oven of 2 kW power rating is operated in a domestic electric circuit (220 V) that has…
A:
Q: The only lightbulb in a circuit is replaced with a new one. The same electrical potential is…
A: We know that the voltage and intensity has no relation with each other.
Q: A capacitor, which is initially does not have a dielectric, is connected to a 4 Volt battery and…
A: The energy stored in the capacitor is, U=12CV2C=2UV2 The capacitor plates with a dielectric…
Q: Does the light bulb follow ohm’s law? At low current 3.8 V/A At high current 34 V/A
A: When a graph is drawn between voltage and current for a light bulb it is not a straight line and…
Q: The manufacturer of an electric table saw claims that it has a 3.0 horsepower motor. 1 horsepower is…
A: Given data: Voltage V =120 V Current I=15A
Q: By describe the motion of a damped harmonic oscillator that is initially at rest and that is acted…
A: The equation of motion for forced F=F0sinωt damped oscillator is given by, md2x…
Q: Car batteries are normally rated in ampere-hour. What does this mean?
A: Car batteries are usually rated in Ampere-hour. It reflects the capacity of the battery of the car.
Q: Small household electrical devices, such as vacuum cleaners, televisions, and floor lamps, each draw…
A: In series combination, the current is the same while the voltage is different across the circuit…
Q: Small household electrical devices, such as vacuum cleaners, televisions, and floor lamps, each…
A: There are two ways to connect electrical circuits, 1. Series connection For a series circuit the…
Q: In a single-loop circuit with a DC voltage source and a resistor, which of the following must be…
A: Difference in potential makes the flow of charges. Charge moves around the circuit at the same rate…
Q: How would you hook up three resistors in a circuit to get (a) the maximum current and (b) the…
A:
Q: What is the value of the unknown voltage indicated in the picture. Assume that the wire connected to…
A: The unknown voltage indicated in the picture.
Q: Car batteries are normally rated in ampere-hour. What does this mean?
A: One ampere hour can be expressed as 1 Ah=1 C1 s×3600 s=3600 C
Q: A total current I flows through the networks of resistors shown in the figure. In which of the…
A: Resultant resistance of the array
Q: The transmission of electric power occurs at the highest possible voltage to reduce losses. If the…
A: Given, The transmission of electric power occurs at the highest possible voltage to reduce losses.…
Q: Why is a series arrangement not used for connecting domestic electrical appliances in a circuit ?
A:
Q: The copper wire in the world’s simplest motor has a coating on the surface. Does thecoating have a…
A: Let the resistance of the inside of a copper wire = R Let the resistance of coating on the outside…
Q: If two household light bulbs rated 60 W and 100 W are connected in series to household power, which…
A: Given, two light bulb, 60 W and 100 W
Q: When a 1-Ω resistor, a 2-Ω resistor, and a 3-Ω resistor, are connected in series to a common DC…
A: Draw the circuit diagram of the arrangement as:
Q: 18: In the circuit shown, e-10 V and the capacitor is initially uncharged. If the switch S is closed…
A: The supply voltage of the circuit is given as, ε=Vs=10 V, The resistance of the resistor is given…
Q: The adjacent figure is the l-V curve of a solar cell operating at T=300K. The filling factor of the…
A: Imax = 60 mA Io = 40 mA Vmax = 0.6 V Vo = 0.4 V
Q: 8. How much power is used if a circuit draws a current of 1.2 A with a resistance of 3.4 kN?
A:
Q: Two 26 Ω and one 54 Ω light bulbs and a 24 V battery are connected in a series circuit. What is the…
A:
Q: What current / is needed to transmit 145 MW of power over a transmission line held at a voltage of…
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Q: Why the sum of all currents at any junction is zero? 2) Why the sum of all vlotages
A: Kirchhoff’s circuit laws lie at the heart of circuit analysis. With the help of these laws and the…
Q: Which wire can be missing from some appliances? Why?
A: Missing wire from electrical appliance
Q: (a) Voltage across A to B (b) Voltage across C to N (c) Voltage across A to N (d) Voltage…
A: The source voltage is given as, VS=90 V. The resistance of the resistors are given as, R1=200 Ω,…
Q: The ignition circuit of an automobile is powered by a 12-V battery. How are we able to generate…
A: ignition circuit
Q: One wire in a high-voltage transmission line carries 1 000 A starting at 410 kV for a distance of…
A:
Q: A(n) is described as a closed loop or pathway that allows electric charges to flow. electric circuit…
A: Given: A(n)_______ is described as a closed loop or pathway that allows electric charges to flow. To…
Why do transmission lines operate at very high voltages while household circuits operate at fairly small voltages?
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