The EMF of a battery is 4.5 volts. When it is connected to an external resistance of 12 ohms, the TPD is 4.3 volts. What is the internal resistance of the battery?

Q: Given the combination circuit, determine what is required below. a. What is the voltage drop across…

A: Given circuit:

Q: b) Find the value of the resistance and its error part (give your results in two form such that %…

A: B)

Q: 1. Using your own computed value of R, calculate the following: a. Current in the 2-ohm resistor,…

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Q: TABLE OF RESISTIVITY: Fill out the table and compare the resistance of the following:

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Q: In Figure 3.5, is there a linear relationship between current and voltage? In Figure 3.5, what is…

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Q: Does the tolerance affect the value of the resistor? How?

A: A Brief About Tolerance In Resistor:- Tolerance is defined as the maximum allowable variation in the…

Q: The voltages V1, V2, and V3 are measured with respect to the reference shown in the diagram. Find…

A: In this question,  Find the value of voltage V1 as shown in the circuit.  We know I= V/Req

Q: The question is how to produce hv about 150 kv. A) What if we have a dc battery with a voltage of 9…

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Q: When is it necessary to include internal resistances to circuit calculations

A: In this question, When is it necessary to include internal resistances to circuit calculations?

Q: "What happens to the resistance of a piece of wire, if it is strtched to double its length?"…

A: Let the initial resistance of the wire be R. It is given by the expression as shown below: When the…

Q: A string of 30 mini LED lights, each using a 60 ohm resistor, are connected in parallel to a 3V…

A: If n resistors of resistance (R) is connected in parallel then equivalent resistance(Req) is Rn.…

Q: 3.0 V across the cable, and a current of 50 A in the circuit. Draw the circuit diagram, representing…

A: Given: Battery emf, E=12 V Terminal voltage of battery, V=11.4 V Circuit current, I=50 A Voltage…

Q: Suppose that your car will not start. To determine whether the battery is faulty, you turn on the…

A: Connect your vehicle's battery to the battery of a friend's car in series so that the automobile…

Q: The values of the resistance mentioned in the circuit are in ohms and the supply voltage is in…

A: In the circuit,  All the resistances are connect in the series and parallel.  Find the value of the…

Q: The resistance of 10m of a specially drawn wire is found to be 32.1 ohms. A coil wound with…

A: Resistance of a wire is directly proportional to the length and inversely proportional to the area…

Q: b) Find the value of the resistance and its error part (give your results in two form such that %…

A: Given, Color code of resistor Green-Blue-Violet-Gold

Q: c) The resistance of the wire used for telephone is 350 per kilometer when the weight of the wire is…

A: Given that R= 35 ohm L= 1000 m specific resistance of the material =1.95 x 10-8 ohm-m Part (i)…

Q: a) Find the value of resistor using colour code (Brown-Orange-Gold-Silver). b) Suppose the measured…

A: a) Given, Resistor color code is Brown-Orange-Gold-Silver

Q: A flow chart detailing the sequence of manufacture of the energy saving switch for a kettle.

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

Q: 1. Why resistance is an important property in the field of electronics and electricity?

A: According to guidelines we need to solve only first question. According to question we have to…

Q: size attic fan would do i need for a 1,500 square foot home

A: To determine the attic fan size for a 1500 square foot home.

Q: The resistance of a mile run of No. 1 copper wire telephone lie is measured and found to be 5.39…

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Q: What is/are your observations regarding the value of the equivalent resistance of a number of…

A: 1. when the resistors are connected in series then net resistance is increases  and  when the…

Q: he resistance of a given device is 46ohms at 25degrees celcius. If the temperature coefficient of…

A: Given that R25°C=46 ohmα20°C=0.00454Rt°C=92 ohm calculate the temperature co-efficient at 0 degree…

Q: c) Two of you have been given two instruments with the units in ohms, your colleague measures the…

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Q: internal energy of water in a container is increased by 330 kJ by means of a device placed in the…

A: The internal energy 330 kJ  voltage applied to the heater is 110 volts and the total operating time…

Q: The resistance of a given electric device is 46 ohms at 25 °C. If the temperature coefficient of…

A: In this question The resistance of a given electric device is 46 ohms at 25 °C. If the temperature…

Q: Three resistances of 8, 12, and 24 ohms are in parallel. This combination is in series with an-…

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Q: A copper wire having a diameter of 0.80 mm is measured to have a resistance of 10.3 Ω at 20 o C. How…

A: This question belongs to circuit theory . It is based on the relation among resistance , length ,…

Q: If the resistance of a certain wire is 4.068 ohms per 1000, what is the length of a piece of this…

A: If the resistance of a certain wire is 4.068 ohms per 1000 meter, what is the length of a piece if…

Q: The open-circuit voltage of a storage cell is 2.4 volts. The terminal voltage, measured when the…

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Q: What is the formula for temperature coefficient of resistance

A: Temperature coefficient of resistance(TCR) TCR is defined as the calculation of a relative change of…

Q: The resistance of a certain electrical device is 46 ohms at 25° C. If the temperature coefficient of…

A: The resistance of a certain electrical device R1 =46 ohms at 25° C. the temperature coefficient of…

Q: copper bus bar carrying 1200A has a voltage drop of 1.2mV along 24cm of its length. What is the…

A: In this question we will find resistance per meter of copper bar..

Q: Chassis resistance has an Ohm limit for patient safety, what is the Ohm limit

A: Chassis resistance has an Ohm limit for patient safety.

Q: If a 100W solar panel with solar charge controller is connected across a deep cycle battery and the…

A: Given  Rating of the solar panel = 100 wBattery voltage v=12 vThe total power consumption =724.8…

Q: The EMF of a battery is 4.2 volts and its internal resistance is 0.2 ohm. Its is connected to an…

A:

Q: Each electrical appliances shall be provided with a(n) ______ giving the identifying name and rated…

A: Solution:   According to the Article 240 of the National Electrical Code(NEC). Each electrical…

Q: A string of 30 mini LED lights, each using a 60 ohm resistor, are connected in parallel to a 3V…

A: Resistance of led : 60 ohm  Voltage across led : 3V

Q: *Explain the process here; how to determine the resistor value using the color coders and nominal…

A: Color code of the resistor: Gold and silver color denoted the 5% and 10% tolerance respectively.

Q: Given the combination circuit, determine what is required below. a. What is the total resistance of…

A: Given: Consider the given circuit below. Here, we need to determine the total resistance, total…

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Q: An incandescednt lamo, rated at 100W , gives a certain amount of light when placed across the 12p V…

A: In AC we take RMS value of voltage .

Q: What is the the value of a resistor without considering its tolerance value percentage?

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Q: Identify 3 common simple electrical gadget/device at home and for each device; 1. identify safety…

A: Three common simple electrical gadgets/devices at home are: 1. FUSES: When there's too much current…

Q: We have a galvanometer whose internal resistance is 20 Ohms, and requires a shunt resistor of 100…

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Q: According to the following specifications, a single solar 295-watt solar panel has maximum power…

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Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.