The current consumed by a digital wristwatch is 20 μA. What is the equivalent resistance of the watch if it is powered by a 1.5 V battery?

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

A:

Q: A 1.1 kW electric heater is operating with 220 V and it is running for 2 hours. Calculate the…

A: Power of electronic heater=1.1kW=1100W Operating voltage=220 Volt

Q: 32. What are the internal resistance and voltage rating of a 450-W automatic washer that draws 3.75…

A: Given values are -

Q: You have a Switch LED Lightbulb with the following information: It is equivalent to a 40 Watt…

A: We need to find out ownership cost for given details .

Q: A refrigerator requires 220 V ac to operate properly and during this time, it draws a current of 2.5…

A: From Ohm’s law, it can be concluded that if V is the voltage across any appliance and I is the…

Q: An electric kettle draws 10 A at 220 V for two minutes to heat water. Calculate the energy put into…

A: Electrical Energy = Power (W) x Time (s) and Power (Watts) = V x I

Q: If a household have a budget of 20 cents to light their house on Easter Day and they have a 100 W…

A: If R indicates the total electrical expenditure of the household and U indicates cost of 1 kWh of…

Q: The power dissipated by an electric bulb is 40 W and the current flowing through the electric bulb…

A: Given, Power dissipation, P = 40 W Current flowing, I = 1.6 A

Q: Question 6 How much energy is used by a 3 W light bulb working for 1.3 hours? Give your results in…

A: Given, Power P=3 W Time t=1.3 hours

Q: A current of 2A flows in a wire offering a resistance of 10ohm. Calculate the energy dissipated by…

A: Given: Resistance, R=10 Ω Current, I=2 A Time, t=0.5 hr

Q: For how many hours can a battery deliver 2 A if it is rated at 70 Ah? 30 25 40 35

A: Given data, Rating of battery = 70 Ah Current flowing through battery i = 2 A

Q: Calculate the Voltage Vx 303 LA OVx 3.n

A: The circuit diagram is shown below: To solve this problem the equivalent resistance of the circuit…

Q: A 1.9 kW electric heater is operating with 235 V and it is running for 2 hours. Calculate the…

A:

Q: have a Switch LED Lightbulb with the following information: It is equivalent to a 40 Watt…

A: We need to find out total cost .

Q: A 1-kW electric heater takes 15 min to boil a quantity of water. If this is done once a day and…

A:

Q: An electric iron is rated at 1.1kW, 250V. Calculate the current taken by it if it is connected to…

A: For the calculation of current taken by connection using formula  P(in Watt)= V(in volt)*I (in Amp)…

Q: An incandescent 100W light bulb costs $0.40 and lasts 1200 hours. A compact fluorescent light bulb…

A:

Q: How many coulombs are supplied by a battery in 36 hours if it is supplying current at the rate of…

A: Charge, Q = current × time

Q: If 1 unit of electricity costs about 2 USD, then how much electric bill will be generated if a 100 W…

A: 1 unit of electricity is equivalent to 1 kilowatthours (kWh) of electrical energy. It is to be noted…

Q: A utility company charges 8.2 cents/kWh. If a consumer operates a 60 W bulb continuously for 1 day,…

A: 1 kWh of energy is equivalent to powering on a 1 kW or 1000 W electric appliance for 1 h. This is…

Q: How much energy (in kilowatt-hours) is required to light a 100watt bulb (continuously for 1 year =…

A: Energy required to bulb= power* time in hours in a year. number of hours in a year = Number of days…

Q: When fully charged, a 2.5 V battery contains 15000 J of energy. When connected to a lightbulb, the…

A:

Q: 4. An ordinary light bulb is marked “60 W, 220V “. a. What is the resistance of the bulb? b. What is…

A:

Q: 1. If the circuit of fig(1) had 10KO of resistance, the amount of applied voltage necessary to…

A:

Q: 5. How many kWh of energy does a 550W toaster use in the morning if it is in operation for a total…

A: This problem is from electrical power generation

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

A:

Q: 2. An energy source forces a constant current of 2 A for 10 s to flow through a light bulb. If 2.3…

A:

Q: constant current of 2 A is required to charge a car battery for 3 hours. The terminal voltage is 12…

A: Please refer the attached images for the complete answer..

Q: the sylvania supper saver 75 W light uses 20 watts, produces 1280 lumens, and costs $4.49. As an…

A: The efficiency is defined as the ratio of the output to the input. For a light bulb output is the…

Q: An electrical device draws 2.8 A (amps) when a voltmeter shows a voltage drop of 7.1 V (volts)…

A:

Q: 3. The wall charger for an iPhone is 900mA. If you have it plugged into the wall for 2 hours, how…

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

Q: If a 12 V battery delivers 100 J in 5 s, then find the amount of charge delivered.

A: If E represents the energy delivered in joules (J) by the battery having a voltage of K volts (V),…

Q: 8. A light bulb, having a tungsten-filament, draws 2.85 A at 220 V when running at normal condition.…

A: Resistance at any temperature =( resistance at 17 degrees )×(1+(temperature coefficient of…

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

A: ELECTRICAL NETWORK: When addressing a circuit problem or constructing a balanced circuit, the word…

Q: An electric skillet draws 5000 mA at 220 V. Assuming that everything is constant and the voltage…

A:

Q: 2. An energy source forces a constant current of 2 A for 10 s to flow through a light bulb. If 2.3…

A:

Q: A 1.8 kW electric heater has a resistance of 18 Q and it is running for 2.5 hours. Calculate the…

A: Power of heater P=1.8kW Resistance R=18ohm Running time 2.5Hours Find the energy and current?

Q: 5. A DC Electric motor consumes 36 MJ when connected to a 250 V supply for 1 hour. Fid the power…

A: Ans. Is shown below

Q: 2. Consider the circuit shown below. (a) Calculate the equivalent resistance of the circuit (b)…

A: Ans (d) RTH = 5 Ω × 20 Ω5 Ω + 20 Ω = 4 Ω   I = 30 V 6 Ω + RTH -------- 1) Putting value in equation…

Q: A water jet cinsume 3450 W for 126 hours a week.  1. What is the energy consumed (kWh) for one-year…

A:

Q: HW 1: How much current, i, is drawn by an electrical device with resistance 15 2 at 110 V?

A: Note:Please submit other questions as a separate questions because according to our guideline we how…

Q: A 220-volt 2 ampere electric kettle contains 5 kg. of water at 21° C. It is required to bring it to…

A: Normally Electric Kettle is being used at normal households to heat the water. Inside the electric…

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

A: Need to find energy in KWh

Q: A certain appliance uses 350 W. If it is allowed to run continuously for 24 days, how many…

A: In this question,  We need to choose the correct options Given data :- Alliance uses Power P= 350W…

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.

Q: The voltage across a 1.1 kW toaster that produces a current of 10 A is Blank 1 V.

A: We need to find out voltage for given current and power

Q: . A water heater has a resistance of 5.3 ohms and takes 43.5 amp when in operation. If it is in…

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.