A 350 V energy source delivers 450 mA for 1 hour. How much energy in joules does this represent?

Q: 6. A battery provides 100 V to a resistor carrying a current of 10 A. What is the resistance? O…

A:

Q: a 10- resistor dissipates 1 w of power when connected to a dc voltage source. if the value of dc…

A: The power is directly proportional to the square of the voltage. P1P2=V12V22 From the given…

Q: If the voltage of a circuit is 12 V, and the resistance is 40 Q, what is the power generated?

A: Given:-V=12voltR=40ohm

Q: The number of free electrons passing through the filament of an electric lamp in one hour when the…

A: Given, Current through filament, I=0.32 A Time, t = 1 hour = 3600 second Charge on electron,…

Q: The power of a heater is 500 W at 800 °C. What will be the power at 200 °C? Temperature coefficient…

A: In this question we need to find a power at 200oC .

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: 1. Find the voltage, current and power at 3 ohms resistor. 10 ww 50 20 ww- ww ww

A:

Q: An amount of energy equal to 100 J is used in 5 s. What is the power in watts? 10 W 20 W 30 W 40 W

A: In the Given Question : Amount of Energy E=100 J time t=5 secthen calculation of Power : P in watts…

Q: How much energy (in kilowatthours) is required to light a 60-W bulb continuously for 1 year (365…

A: Given: Power of bulb, P=60 W Time, t=365 days

Q: If 50 J of energy are available for every 10 C of charge, what is the voltage? 10 V 6 V 4 V 5 V

A: Given: Energy, E=50 J Charge, Q=10 C

Q: Let the voltage output of the battery be 12.0 V. What are the voltage across and the current in each…

A: The solution for the given is; Current flowing through 1ohm resistor is, I=VRI=121I=12 A Then, the…

Q: A current of 1.50 A flows through a motor when it is connected to a 120 V source. What is the…

A: To find the resistance of the motor

Q: Vww る2e 200 (4 +) 5A

A: As given in the circuit apply KCL at node at 6 ohm V-2010+V12+V6-5=0V110+112+16-2-5=0V0.35=7V=20v

Q: 5 A charge of 240 C is transferred in 2 minutes. The current flowing is: (a) 120 A (b) 480 A (c) 2 A…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: What is the cost of using 6 hp motor for 10 hours if rate is 400 dollar per killo watt hour.

A: Given rating is -

Q: QI) A) A 70 W bulb is on for one hour. Find the energy converted in 1. watt-hours 2. watt seconds 3.…

A: Energy in watt hour=power  in watts(p)*time in hours. 1 hour =3600 seconds. 1kilowatthour=1000 watts…

Q: How much change in the power of wind will take place if wind velocity becomes 4 times and blade…

A: To find the change in the power of wind

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

A:

Q: If 50 J of energy are available for every 10 C of charge, what is the voltage?

A: Given, W=50 JQ=10 C

Q: ow much energy does a 5hp mot

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Q: How much energy is required to move 5C of charge from one point in a circuit to another when the…

A: Given, Charge, Q = 5 C Voltage between two pints, V = 20 V

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: 1. A current of 3.6 A transfers a charge of 375 mC (375 x 103). How long would this take?

A: The solution is given below

Q: How much energy is required to move 5C of charge from one point in a circuit to another when the…

A:

Q: shown in the figure below, what would be the value of Vo, in volts? " 10 kN 20 k2 180 V 30 k 30,000…

A:

Q: power

A:

Q: across a resistance is doubled, what will happen to the power absorbed by 2. If the voltage the…

A: 2. Given, Voltage across a resistor is doubled.

Q: A battery of e.m.f. 12 V supplies a current of 5 A for 2 minutes. How much energy is supplied in…

A: Given:- emf,V = 12V, Current,I =5A             Time,t = 2min = (2×60)sec = 120sec

Q: A 100 microA ammeter has an internal resistance of 100 ohms. For extending its range to measure 500…

A: In the question Ammeter range = 100uA Internal resistance Rm= 100 ohm Shunt resistance required to…

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

A:

Q: Question 5. What is the value of Rin ohms such that the current through the 25 ohm resistance is…

A: From the basics of network theory

Q: 75. If 750 µA is flowing through 11 k2 of resistance, what is the voltage drop across the resistor?…

A: we need to find out voltage across 11 kohm resistance.

Q: Which object converts electricity to light?   A) Solar panels B) Battery C) Bulb D) All the…

A:

Q: If 70 J of energy is available for every 30 C of charge, what is the voltage?

A: Given, W=70 JQ=30 C

Q: 50 mA of current flows through a 10 kΩ resistor. How much power is dissipated?

A: Given data:  Resistor: 10 kΩ Current: 50 mA

Q: 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: 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: 6 ohm 4 ohm -10 V 2 ohm

A:

Q: How long does it take a 100 W bulb to consume 13 KJ of energy?

A: Given: The bulb rating is P=100 W The energy consumed is 13 KJ

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: 1. What is the nominal resistance of a resistor with the following color rings: Blue, Grey, Orange,…

A: To find the value of resistance with color coding as Blue, Grey , orange , silver

Q: Find the value of V (voltage drop across 5 Ohm resistor), if V1(voltage drop across 10 Ohm resistor)…

A:

Q: If 50 A current is flowing in the 2 ohm resistor. What will be the dissipated power and voltage…

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Q: The voltage across a light is 100V with a current of 1A for 10 hours. How much energy is used?

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Q: Calculate the voltage needed to supply 2 A through a resistance of 30 ohms

A: It is given that: Current=I=2 AResistance=R=30 Ω

Q: 1Ω : 1Ω HA (†

A: Given circuit shown

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

A:

Q: Find the voltage drop across 4-ohm resistor and the energy dissipated across 2-ohm resistor after 20…

A:

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.