How long would it take 0.5 Megaohm of resistance to dissipate 1000 joules of heat if the current in the resistance is 20 microamp.

Q: What is the amount of charge that passes by a point in a wire in 3 ms, if the current was measured…

A: Resistance opposes the flow of current. Resistance is given by below relation   R=VI where V is…

Q: 100 volt bulb has a resistance of 500 ohms. The number of hours it can work for every Wh of energy…

A: Power consumed by the bulb =Voltage2Resistance Energy = power(watts)*time(hours) Wh

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: An electronic device has a resistance of 30 Ohms and a current of 20 A. What is the voltage across…

A: Using ohms law , find the voltage across the device. By ohms voltage across the resistance = current…

Q: An electric iron is drawing 2 A at 130 V. What will be the internal resistance of the electric iron?

A: Given voltage of electric iron is 130V and current is 2A.

Q: A 220 – V bulb draws a current of 10 A. How much charge in kilocoulombs will pass through the bulb…

A: Total charge passed in t seconds = current drawn × time in seconds. Given bulb draws constant…

Q: A battery can supply 10 joules of energy to move 5 coulombs of charge. What is the voltage of the

A: In this question , we will find voltage of the battery....

Q: 1. what is the resistance of a component having no continuity? 2. the rating of a storage battery…

A: Component with no continuty means there is a some open circuit in it .  We know that in open circuit…

Q: A battery may be rated in ampere-hours (Ah). A lead-acid battery is rated at 160 Ah. (a) What is the…

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Q: A battery can deliver 15 joules of energy to move 9.4 coulombs of charge. What is the potential…

A: Given: Energy delivered by battery, E=15 J. Charge, Q=9.4 C.

Q: A certain battery with potential difference of 2 Volts can deliver 10 Joules of energy, determine…

A: Voltage is defined as  The work done per unit charge So use the definition V = W/q volts Units of…

Q: calculate the resistance of a 3000 foot long brass wire with a 0.04 inch diameter and a resistivity…

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Q: 3) Calculate the resistance of a cross-sectional area A Od mm) and resistivity A(50*10 Fl the wire…

A: Given: The length of the wire is, l=100 m Cross sectional area, A=0.1 mm2=0.1×10-6 m2 Resistivity of…

Q: What current does the ammeter read in milliamperes? Given: Solution:

A:

Q: A hot wire supplies 100 kJ in 10 minutes. What is the potential difference (in V) across the wire,…

A: Given a hot wire having, Energy, E = 100 kJ Time, t = 10 minutes = 600 seconds Current, I = 2 A

Q: For the circuit shown below, determine the power consumed by battery 1's internal resistance.

A: 1) in the given circuit Apply Kirchoff voltage law, 12-5=I(1+0.5+5) I=7/6.5  I=1.07692 Ampere power…

Q: What is the power rating (in kW) of a device which has a resistance of 150 ohms and draws 6Amps of…

A: Given: Resistance R = 150 ohms             Current I = 6A We need to determine power rating of…

Q: Calculate the work done in a resistor of value 50 ohm carrying 20 A current for 20 hours.

A: Value of resistor (R), current(I) and time (t) are –

Q: The resistance of a bulb filament is 2000 at a temperature of 100 OC. If its temperature coefficient…

A: Given that R100°C=200 ohmRx°C=2000 ohmα=0.005 /°C Assume that resistance of bulb filament is R0 at 0…

Q: What is the resistance of 600 ft length of #10 AWG copper wire

A:

Q: 3. A resistor of 100 Q has a charge flowing through it at the rate of 300 coulombs per minute. How…

A: 3. Given, R=100 Ωdqdt=300 Cmin=5 Cs

Q: How much energy is involved in maintaining a 0.5 Ampere current through a battery for 0.5 minute if…

A:

Q: A metal bar is 2 m long and 8 mm in diameter. Calculate its resistance if the resistivity of the…

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Q: 2. A current of 6 A flows for 10 minutes. What charge is transferred? [3600 C]

A: Given  Current = I = 6A Time = T = 10 minutes  Charge is a property of matter.  The amount of charge…

Q: 1. In what time would a current of 10 A transfer a charge of 50 C? [5 s]

A: Given, Current, i=10 A Charge, q=50 C Time, t=?

Q: In the formula for finding the resistance of a piece of copper wire , the value k indicates____. A.…

A: Solution: VD = 1.732 X K X Q X I X D /CM for 3 phase VD = voltage drop Q = Alternative current D =…

Q: A copper bar has a length of 20 ft, width of 4 inches and thickness of 0.5 inch. If the resistivity…

A: Given that  L=20 ftW=4 incht=0.5 inchρ=10.37 Ω-CM/ft

Q: If 750 µA is flowing through 11 k ohms of resistance, what is the voltage drop across the resistor?

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Q: When a certain 1.5-V batter is used to power a 3-W flashlight bulb, it is dead after 60 minutes of…

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Q: If a load draws 15 mA from a 9 V battery, what power (in W to two sig. figs.) does the load draw

A: In this question, We need to calculate the power? If a load draws 15 mA from a 9 V battery.

Q: What is the resistance of aluminum wire which is 10 m long and has a diameter of 3mm gives the…

A:

Q: 3. A battery can deliver 8 Joules of energy to move 3 coulombs of charge. What is the potential…

A: 3. Find the potential difference given that energy is 8 joules and 3 coulombs of charge ? 4. How…

Q: A silver bar, with 20x20cm dimension, has a length of 100 inches. What is the resistance of the bar…

A:

Q: If 420 J of energy are absorbed by a resistor in 19 min, what is the power to the resistor?

A: Power absorbed by the resistor = Energy absorbed in JTime in seconds. 1 min = 60 sec Given , Energy…

Q: What will be the amount of work done by a 200 ohm resistor carrying a current of 20 A for 20 hours?

A: For electrical circuits, power can be defined as work done per unit time. So, product of power and…

Q: resistor of 10 ohm has charge flowing through it at the rate of 300 coulombs per one minute how much…

A: current is defined as rate of coulombs (charge) per unit second  I=Qt=30060sec=5A

Q: If you have a resistor of colors (red, brown, orange, silver) and it was measured by ohmmeter as…

A: In this question we need to check the given resistance of colour are within the tolerance or not

Q: If you compare the ohmmeter readings with the colors reading for the given resistance.could you…

A: Ohmmeter is an instrument which gives direct value of resistance and the color coding gives…

Q: A copper rod of 10m long has a diameter with one inch. If the resistivity of copper is 10.371 ohms…

A: Given Length = 10m  Diameter = 1 inch = 2.54 cm = 0.0254 m Radius = 0.0127 m

Q: A wire of diameter 0.550 mm and length 45.0 m has a measured resistance of 2.80 2. What is the…

A: Given thatDiameter=0.550mmlength=45.0mResistance=2.80Ω

Q: A 10 ohm resistor has charge flowing through it at a rate of 300 coulombs per minute. How much power…

A: Give Data are R = 10ΩRate i.e current  i = θt = 300 c1 minutecalculate power ?soln   i = 30060 c/sec…

Q: Calculate the equivalent resistance: 1. The current (in mA) at the terminal of automobile battery…

A: To calculate charge we will do integration of current . Integration of current will be equal area…

Q: If 1.27 × 1021 electrons move at a given point in the circuit for 100s, how much current is flowing…

A: Resistors, inductors and capacitors form an integral part of any electrical circuit. A source,…

Q: Q3\ If you have a resistor of colors (red, brown, orange) and it was measured by Ohmmeter as 230002,…

A:

Q: 7.) A silver bar, with 20x20cm dimension, has a length of 100 inches. What is the resistance of the…

A:

Q: If 1.27 × 1021 electrons move at given point the circuit for 100s, how much current is flowing in a…

A: Current I = dq/dt                  = q/ t Given time t = 100 us  And from given data find the charge…

Q: The Power dissipated by a device is 40 Watts. How long will it take to deliver 640 Joules?

A: We know that power of an entity is defias the amount of work done or energy spent per unit time i,e.…

Q: 6.1 A Car battery is rated for 12 Volts, 5 Ah rechargeable battery can be operated for about 10…

A: Given, A battery with V=12 VQ=5 Aht=10 h

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.