Determine the p.d. which must be applied to a 13.5 k resistor such that a current of 75.8 mA may flow

Q: Two 25-volt batteries having an internal resistance of 0.2 ohm and 0.4 ohm repesctively supply power…

A: We have taken the voltage from the circuit that  is 24V How much current is drawn by each Battery

Q: (a) A 4.7-kΩ resistor is purchased with a tolerance of 1 percent. What is the possible range of…

A: Given: Rating of the resistance = 4.7 kΩ = 4700 Ω                 Tolerance = 1% Maximum Resistance…

Q: Nichrome ribbon resistor elements each has a resistance of 1 ohm. The element is made from sheet of…

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Q: If a small power system has a  base power of 5.0 MVA and base current is 1000 A, the base voltage…

A: Given: Base power =5MVA Base current= 1000 Formula used: P=VI

Q: The resistance of a length of copper wire is 3.60 ohms at 20oC. At what temperature will the…

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Q: Determine the value of resistor R using voltage division.

A: In this question we will find value of unknown resistance using voltage division...

Q: The resistance of a wire is 126.48 ohms at 100°C and 100 ohms at 30°C. Determine the temperature…

A: The resistance variation with the temperature is expressed as shown below:  R=R01+α∆t∆t=Change in…

Q: Which one of the Folowing is the unit of Energy? a. volts b. Watts c. Calorie d. Kg

A: Energy is given by  E = The Power dissipated by the electric element in given time . E = P× T  P=…

Q: The resistance of a wire is 126.48 ohms at 100 °C and 100 ohms at 30 °C. Determine the temperature…

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Q: The working voltage of a battery is defined as the voltage at the battery terminals A. while float…

A: Given To define the working voltage of a battery as the voltage at the battery terminals.

Q: The value of resistance in insulators is a. can not be determined b. zero c. large d. small

A: Insulator opposes current .

Q: The resistance of a copper wire is (0.92 0) at a temperature of (4 oC). At what temperature will be…

A: The temperature coefficient of copper is  = 0.00386/°C

Q: Q1) A silver wire has conductance of 0.25 Siemens. What will be the resistance of a copper

A: Given- conductance of silver-Gsilver-0.25 simensdcopper=13dsilverwhere d is…

Q: The resistance of a copper wire is 125 ohms at 100°C. Determine the resistance at 70°C Note: DRAW…

A: Given, Rref=125ΩTref=100°CT=70°C

Q: What is the average power transferred to resistor R2?

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Q: 3. A battery is measured to have an open-terminal voltage of 14.2 V. When this voltage is connected…

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Q: A resistor whose values can be varied over a range of values is called a _____ resistor.   Select…

A: A variable resistor is a resistor of which the electric resistance value can be adjusted. The…

Q: 2. Determine the nominal resistance values of these resistors, given their band colors, and also…

A: Carbon resitance or color code resistancs is calculated  as given below  by using table

Q: The resistance of a copper wire is (0.92 0) at a temperature of (4 oC). At what temperature will be…

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Q: What is the resistance of a copper bus-bar with the dimensions shown figure below

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Q: 1) The resistance of a copper at 30°C is 500. If the temperature coefficient of copper at 0°C is…

A: In this question,  Find the resistance R at T= 100°C If temperature coefficient = 0.00427 at 0°C…

Q: aluminum cable has a resistance of 44 at 30C. calculate the resistance of the cable when the sun…

A: In this question we will find resistance at given temperature..

Q: If 24 resistances, each of value 72 ohms are connected in parallel, then the total resistance is?…

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Q: The electric resistence of a light bulb is 159 ohms. Determine the value of the current flowing…

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Q: (a) Determine the colour bands and indicate the resistance range values (minimum - maximum) for each…

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Q: 2. In Figure, the battery voltage is V= 65 volts, and the values of the resistances, in ohms, are…

A: here, all three resistors are connected in parallel with the voltage source.

Q: What are the different types of Insulators, give examples for each type. Compare the glass insulator…

A: Materials can be classified into three categories namely conductors, insulators and semiconductors.…

Q: A resistoris measured and found to have a valueof 6066 Ω at 0◦C and 6562 Ω at 100◦C. What are the…

A: R=R01+αT6066=R01+0R0=6066Ω…

Q: explain every connection reasons in a detailed way and why we used this device (ammeter etc.)in this…

A: Electrical machines can be either generator , transformers or motors. They can be either Ac machines…

Q: If a difference of 2.15 volts is applied to an unknown resistance and the measured current is in…

A: The potential difference between two points is given by the difference of voltage at the two points.

Q: The resistance of a copper wire is (0.92 Q) at a temperature of (4 oC). At what temperature will be…

A: Given, R1=0.92 ΩR2=1.06 ΩT1=4°C

Q: A 1000 ft length of No. 8 AWG copper wire has a resistance of 0.628 ohm at 20∘C. Determine the…

A: Given data:         ength of copper wire=l=1000 ftCross section =8 AWGResitance of wire,R=0.628 Ω We…

Q: The resistance of wire increases from 40 – ohm at 20 0C to 50 – ohm at 70 0C. Find the temperature…

A: Write the given values in the question. R20=40 ΩR70=50 ΩT20=20° CT70=70° C

Q: You want to produce three cylindrical wires with a diameter of 1.00 mm, each with a resistance of…

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Q: A 12.1-mA current flows through a 10 percent, 2.7-k2 resistor. What range must the resistor voltage…

A: I = 12.1 m A  R = +- 10% of 2.7K ohm  Voltage range is required  From the ohm's law  V = I× R .

Q: Nichrome ribbon resistor elements each has a resistance of 1 ohm. The element is made from sheet of…

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Q: The resistance of a 2m length of cable is 2.5 . Determine (a) the resistance of a 7m length of the…

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Q: Which of the following materials are used in PV cells ? a. Paper b. None of these c. Semiconductors…

A: PV cell is used to convert solar energy into electricity.

Q: A wire of resistivity 2.8 x 10^-8 ohm. m and length 20-m must dissipate electrical energy at a rate…

A: An object's resistance is determined by its shape and the material it is made of. The cylindrical…

Q: Q1) What is the valae of the unkno wa renister R in the figure below if the voltage droop across the…

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Q: 2. In the figure shown below, determine the following: a. The current in the battery, I,. b. The…

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Q: For the following electrical circuit, R1 = 4 W, R2 = 6 W, R3 = 2 W, E1 = 10 V and E2 = 4 V.…

A: R1 = 4 W, R2 = 6 W, R3 = 2 W, E1 = 10 V and E2 = 4 V

Q: The resistance of a silver  wire at 300C is 3 ohms. The temperature coefficient of resistance of…

A: R=Rref(1+α(T−Tref)) where,     R = the resistance at temperature, T    Rref = the resistance at…

Q: Find the resistance of a piece of 8 AWG lead wire 600ft long. Consider the temperature to be 20…

A: Given parameters: Wire Guage - 8 AWG Length of wire - 600ft long Temperature - 20 degree Celcius…

Q: the resistance of a wire is 126.48 ohms at 100 °C and 100 ohms at 25 °C . determine the temperature…

A: Given at T =100 C , r100 =126.48 At T =25 0 c r25  =100 And c 0 =? Rt =Ro (1+c triangle t) At T…

Q: what is the resistance of 30 ft of silver wire with a diameter of 0.040 inches. at 20°C

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Q: 15. An AC ammeter set at 10 A is connected in series with the lamp which is busted/open. What is the…

A: The electrical instruments are used for measurement purposes of various parameters. The various…

Q: Question 1. (a) Explain the chemical energy conversion to electrical energy. (b) What is battery?…

A: The transformation of energy from forms given by nature to forms that can be used by humans. Over…

Q: The resistance of a wire is 126.48 ohms at 1000C  and 100 ohms at 300C. The temperature coefficient…

A: R=Rref[1+α(T-Tref)]   --------- equation 1R=126.48 ohmRref=100 ohmT=100oCTref=30oC