How much does it cost to operate a 1.2 kw heater for exactly 30.0 min if electrical energy costs $40.08 per kwh? a. $48 b. $2880 C. $172.8 d. $0.048 O a 90

Q: The Atmos clock(the so-called perpetual motion clock) gets its name from the fact that it runs off…

A: power required for an atom clock, P = total power/no of atmoc clocks = 60/(240*10^6) = 2.5*10^-7 W

Q: a. Determine the mass of a moving object with a velocity of 20 m/s and a KE of 5500 J?   b. Solve…

A:

Q: 5. A person used his 1500 W air-conditioning unit for 6 h every day during the month of July. a. How…

A: Given Power of AC = P = 1500 W Daily used time = t = 6 h Electricity cost = P9.45/kWh We have to…

Q: What is the average wattmeter reading of one wattmeter method? O a. P1+P2 O b. Total power /2 O c.…

A: In one wattmeter method, Total power = average wattmeter reading x 3

Q: A water pump draws about 3.8 A when connected to 240 V. What is the cost (with electrical energy at…

A:

Q: An electric heater is connected across a 220 V emf source. The heater operates for 10 hours and…

A: Given : V = 220 V t = 10 hours E = 11 kWh = 11 x 103 Wh

Q: How many kW.h of energy will a 400 W television set use in one month, if it is turned on for an…

A:

Q: In a particular city, electrical energy costs $0.13 per kilowatt-hour( Round your answers, in…

A:

Q: Charging a cellular phone for 2 hours usually requires 1,080 Joules. What is the power rating of the…

A:

Q: A coffee pot heat water with an electrical heater. The coffee pot is plugged into 120v wall socket…

A:

Q: 49.) When you use electrical appliances you are using electrical energy based on the amount of the…

A: It is given that,

Q: You pay an electric company an average of 8.7497 dollars for one kW-h used. How much would it cost…

A: Given: cost of 1KWh = 8.7497 dollars power of AC = 650 W runs 10 hours per day for 30 days

Q: Marissa's Beauty Salon has six hairdryers that each require 500 watts when switched on. How much…

A: Given : a).  Marissa's Beauty Salon has six hairdryers. b). Each requires 500 watts when switched on…

Q: 10.a. To provide a useful purpose, electrical energy is most often converted to A. heat, chemical…

A: Solution: 10.a electrical energy is most often converted to B. heat, light, or mechanical energy.…

Q: How much does it cost to run a refrigerator all day, for 6 months (assuming there are 30 days in a…

A: As power is defined as the rate of change of energy per unit time hence total energy used in 6 month…

Q: 2. A 350 W laptop is used daily for 9 hours in teaching. How many kWh are consumed by the laptop in…

A: Answer:-  Given    Power (P) = 350 W = (350)/(1000) = 0.35 kW     Time taken for 9 hours in 30…

Q: A light bulb uses up a power of 2.6 kW/hr. If the rate is $153.42 per 1 kW/hr, and the light was on…

A:

Q: A typical cost for electrical power is $0.120 per kilowatthour Suppose your refrigerator uses 400 W…

A: Let the power rating of the refrigerator be P and the cost of the electrical energy per…

Q: Cost of Electricity A refrigerator is an appliance that is left running all the time. In New…

A:

Q: The prefix form of 0.00000065V is  a. 6.5 micro V  b. 650 micro V  c. 65 micro V d. 0.65 micro V

A: Correct option is  (d).    0.65 micro V .

Q: How much energy (in units of kWh) does a 824-W electric motor use in 29 hours of operation? O a.…

A: Given : Power of motor, P = 824 W Time, t = 29 hrs.

Q: for 24 hours, a. How much kilowatt hour was consumed? b. How much was the bill after 24 hours?

A: Total energy consumed E = Power × time

Q: Compare between incandescent lamps (70 watt) and CFL lamp (17 watt). if the price of incandescent is…

A: We know that the energy which is consumed in using the incandescent lamp is given as shown below.…

Q: How much energy (in units of kWh) does a 824-W electric motor use in 29 hours of operation? a.…

A: Given data: Power of electric motor (P) = 824 W = 0.824 kW Time (t) = 29 hours

Q: With a 1200 W toaster, how much does it cost to make a slice of toast (cooking time = 1 minute)?…

A: given          Power = P = 1200 w        cooking time = 1 min        electricity cost = 4.5 cents…

Q: A. 1. Using source transformation, calculate the voltage. R 13A( a) 4.33V b) 39V c) 0.230V d) 36V

A: The current flowing in the circuit is given as, I=13 A The resistance in the circuit is given as,…

Q: B1. There are approximately 20.1 million households that use TVs in the Philippines. On the average,…

A: Given that Power of TV P = 75 W Time t = 8 h Cost rate = 8.75 PHP per kWh Number of TVs are n  =…

Q: b. A small motor draws a current of 1,750 mA from a 120-V line. The output power of the motor is 0.2…

A: Given that:I=1750 mAV=120 VP0=0.2 hpRate=P10.00/kWht=4 hr

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.