One 12 V battery supplies 100 mA to a boom box. How muchenergy does the battery supply in 4 h?

Q: 1. Calculate the power absorbed by the 5-ohm resistor. 60 50 30mA 60

A: Kirchhoff's laws

Q: The area of cross section of copper wire is 3*10-6 m2. It Carries a current of 4.2 A. Calculate…

A: Area of cross section of copper wire is A.   A = 3*10-6 m2.  Current I  I = 4.2 A  Current density J…

Q: A load of 10Ω was connected to a 12V battery. The current drawn was 1.18A. What is the internal…

A:

Q: Using KCL, find the unknown currents. 3.5 mA 8 mA $1

A: To find out unknown currents in the diagram given, Given Iout = 8 mA

Q: Calculate Voltage across 2Ω Resistor where supply v= 10volts.

A: Given circuit, Where, supply voltage V = 10 V

Q: Question 3: At $0.08 per kilowatt-hour, it costs $1.20 to run a heater for 50 hours from a 20-V…

A: First we need to find the power to calculate the current.

Q: Calculate the voltage (in volts) across 20 ohm resistor in this circuit, if the current I=2A. 100 A…

A: We will apply KCL at node to find Voltage across 20 ohm resistor. According to KCL Sum of the…

Q: Determine the value of the current passing in the 4 V battery.

A: To solve above problem, one should know about Kirchhoff's law. There are two Kirchhoff's law. KCL:…

Q: Solve for the current flowing in the 2.2 kiloohms resistor

A: The given circuit is,

Q: It is known that the voltage measured by the voltmeter is 5 Volt 1. Calculate the value of the…

A: As per the guidelines, we supposed to answer first three part of the question at a time so please…

Q: 2n in 20 V Calculate Voltage across 20 Resistor where supply v= 10volts.

A: Given, v=10 volts

Q: 222 resistor is to be made of nichrome wire. If the availa ble wire is 32 in. in diameter, how much…

A:

Q: Using a voltmeter measure the voltage drop develop across each devices due to the flow of current It…

A: In this question,  We need to Fill the table 3 .  We know current I= V/Z Voltage across the…

Q: A 1.2 kW electric heater is operating with 225 V and it is running for 2.5 hours. Calculate the…

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Q: Problem 4. Find the voltage drop across a heater that gives off 7530 J of heat when a 17.4-A current…

A:

Q: current of 2 A flows for 10 hours through a 100 Ω resistor. Calculate the energy consumed by the…

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Q: :10.2 8.23 3.2 V +,

A: Since 6Ω and 3Ω are in parallel their voltage will be same and current in them is given as:…

Q: Find the diameter in inches of 3000ft of copper wire that has a resistance of 77.78Ω

A: Given: Length of copper wire, l=3000 ft=914.4 m Resistance, R=77.78 Ω

Q: The area of cross-section of copper wire is 3 x 10-6 m². It carries a current of 4.2 A. Calculate…

A:

Q: Calculate the energy in joules stored in a 12V, 240Ah battery. Express your results in megajoules

A: energy E = voltage * battery capacity in Ah and 1 wh = 3600 joules Given voltage V = 12 volts and…

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: 10.0 V 3.33 mA

A: Here, the output device is connected across the resistor. That means it will display voltage value.…

Q: 1. Find the current flowing in the 10-ohm resistor. 102 35 62 20 V

A:

Q: Calculate the current flowing through the 15 kOhm resistor and the power drawn through the 4.7 kOhm…

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Q: What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 2? 150…

A: Given a electric heater having, Power rating, P = 1 kW Resistance, R = 40 Ω

Q: Solve for the electric network 120 12V 200 10V 150 find the values of each current across each…

A:

Q: 5. A voltage drop of 112.5 V is measured across a resistor passing a current of 1.62 A. Calculate…

A: As per the guidelines of Bartley we supposed to answer first question only for remaining unsolved…

Q: Q3: Calculate the voltage of 25N resistance in the following circuit. 300 100 (30v 300 50 250 ww-

A: The given circuit is:

Q: Find the current in the 10,5 and 2 ohm resistor 10 Ω ww 2 Ω 252 12 A ЗА ww

A:

Q: A current of 1A passes through a 0.12 kQ resistor. What is the voltage across the system in Volts?…

A:

Q: A 2.2 N resistor is to be made of nichrome wire. If the available wire is 1/32 in. in diameter, how…

A: Given parameters are: Resistance, R=2.2Ω Diameter of the wire, D=132inch=0.03125inch We are…

Q: 1cell = 3.2 volt lithium ion cell Find number of cell required to make a battery of 48v with 125ah…

A:

Q: The voltage drop across a 1.5-kW toaster that draws 12A of current is

A: In this question we need to find a voltage drop across a toaster whose power rating is given and it…

Q: Which one of the following uses high temperature of about 6000F to produce electricity? a. Wind b.…

A: According to the question we have to discuss the temperature during produce electricity.

Q: Find the power supplied or absorbed by the voltage source and current source respectively. Ry RI Is…

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Q: Ib $402 130V 120V

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Q: "How much power is consumed by a 10 ohm resistor, if connected across a 20 volt battery?"     20 W…

A: The resistance is connected across the voltage source; the power dissipated is given by the…

Q: 5. Find the voltage drop across a toaster that gives off 7500 Joules heat when a 13.64 Amps current…

A: Given: A toaster gives off heat H=7500 J. Current through toaster is I=13.64 A. Time t=5 s.

Q: The current in a 960 W, 240 V heater operated at 200 V is ?

A: Consider the formula for resistance is, P=V2R Solve for the resistance as, 960 W=240 V2RR=240 V2960…

Q: 7. Computer for the voltage if the current is 30mA and the resistance is 27kohm. Show your Solution

A: Compute for the voltage if the current is 30mA and the resistance is 27kohm .

Q: Which of the follwing Meter in the home records the number of Kilowatt-hours used a. Electricity…

A: Given meters are: Electricity meter Multimeter Megger Voltmeter

Q: A load of 10ohms was connected to a 12V battery. The current drawn was  1.18amperes. What is the…

A: Assume internal resistance of battery  'r' And  apply KVL

Q: What is the Ah rating of a battery that can provide 0.8 A for 75 h

A: Ah rating is given by = Current × Time in hour

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: Calculate the current flowing through the 2 ohm resistor. 22 ww 5 V ww 10 V ww ww

A:

Q: 21. A piece of wire that is one mil in diameter and one foot long is one mil-foot.   Select one:…

A: 21) Given :  A piece of wire that is one mil in diameter and one foot long is one mil-foot.

Q: 52. How much energy in kilowatthours is required to keep 230-W oil-burner motor running 12 h a week…

A: The solution can be achieved as follows.

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.