A wire of resistance 5.0 ohm is connected to a battery whose emf O is 2.0 Vand whose internal resistance is 1.0. In 2.0 min, how much energy is (a) transferred from chemical form in the battery, (b) dissipated as thermal energy in the wire, and (c) dissipated as thermal energy in the battery?

Q: An electric clothes dryer is rated at 4,000 W. How much energy does it use in 40 min?

A: Given that  An electric clothes dryer is rated at 4,000 W So, power = p = 4000 w Also time = t = 40…

Q: Q4. Convert these into proper vector notation: Westward velocity of 42 km/h. Position 6.5 measured…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: An electric clothes dryer is rated at 2,200 W. How much energy does it use in 45 min?

A: Write the formula for power.

Q: A copper transmission cable 34 km long and 19.5 cm in diameter carries a current of 11 A. How much…

A: Length, L=34 km = 34×103 m Current, I=11 A ρ=1.72×10-8  Time, t =9 hours = 9×60×60 =32400 s…

Q: A fan in an air conditioning unit rated at 250 WCome on for an average of 5.0 min at A time, a…

A: Power of fan = P = 250 W Average time fan is on at a time = t=5 min = 300 sec Number of times a day…

Q: watts

A: Here ,  Power P= 2500 watt Voltage  V= 220 volt Resistance R= ___________

Q: Calculate the energy cost of an electroplating process running at 0.65 V and 45.5 A for 3750 s…

A: Given data: Potential difference (V) = 0.65 V Current (I) = 45.5 A Time (t) = 3750 s Cost of…

Q: Identify whether scalar quantity or vector quantity. MAGNETIC FIELD INTENSITY CALORIE SPECIFIC HEAT…

A: Scalar quantities have magnitudes only while vector quantites have magnitudes as well as a…

Q: How much does it cost to power a refrigerator for 30 days if it is rated at 200 Watts and the power…

A: Electrical energy (E) use equals the power (P) of the object multiplied by the amount of time (t)…

Q: If MERALCO’s electricity charge is 10 Php per kilowatt-hour, calculate how much it will cost if you…

A: Given that:Electricity charge is 10Php per kilowatt-hourPower rating of air conditioner P=1.5…

Q: What would the power (Watts) be for a speaker if it draws 3.0 Amps of current when connected to a…

A: Given that, Current  I=3.0 A Voltage  V=12.0 V The expression for power is given by P=VI=12.0 V3.0…

Q: You use 1,120 Watts for 15 minutes per dinner. What will it cost you to cook your dinners for a year…

A: Power,P=1120 WattsTime,t=15 minutes or 0.25 hourprice of electricity per kwh is 5.5 cent or $0.055…

Q: An elite gaming system. What uses the most electricity in a computer? To what extent may its…

A: The processor and graphic cards are the components which consumes more power. There are other…

Q: Gaps need to be left in lengths of railway lines to prevent buckling in hot weather Select one: O…

A: Metals have a tendency to expand when heated and contract when cooled. In hot weather, the railway…

Q: 1000 w heater is used 6 hours daily and the cost of 1 unit of electricity is 40 p. how much will it…

A: November has 30 days In a month, number of hours heater power is consumed is : 30 x 6 = 180 Hours…

Q: What kind of electricity does a computer consume?

A: To discuss the kind of electricity that a computer consume.

Q: What is the cost of operating a 54.64-W light for a year if the cost of electricity is $0.2 kWper hr…

A: Power (P) = 54.64 Watt= 0.05464 kW cost = $0.2 kW per hr time (t) = 1 year

Q: A 63 kVA transformer supplies a current of 50 A at a voltage of?

A: Formula of Power is given by ,                 P = VI Rearranging for V (voltage)                  V…

Q: What are some of the challenges associated with the introduction of the electric train?

A: High capital cost Uneconomical on lightly trafficked routes Lack of flexibility since they need a…

Q: At 15 cents is a  kilo Watt per hour. What does it cost to operate 1200 W for 1 hour?

A: We have the given information: Power is P=1200 W Time is t=1 hr Calculating energy in kiloWatt per…

Q: How much charge is represented by 4,600 electrons?

A:

Q: If the annual (8 hours per day) cost to run a 400-W computer is ₱12,000.00, how much does the…

A: Given data:  Daily uses = 8 hours per day Power (P) = 400 W = 0.400 kW Total cost of running…

Q: Maria's torch uses 3 dry cells. how many volts does it need to operate?

A: Current is dependent on voltage between 2 terminals. This is called Ohm's law. More is the potential…

Q: You are performing work as an assistant to a cosmology professor. She asks you to estimate the…

A:

Q: Calculate the energy cost of an electroplating process running at 0.57 V and 28.3 A for 3157 s…

A: Data provided: Potential difference (V) = 0.57 V Current (I) = 28.3 A Time (t) = 3157 s Cost of…

Q: 44. In FET, .......control the resistance of the channel. O a. Base. O b. Gate. O c. Source. d.…

A: FET is a device in which the output current is controlled by the applied electric field. It has high…

Q: . What is the unit of Power? Select one: a. Joules b. Newton c. Watts d. Tesla

A: Rate of doing work or rate of energy transfer is known as power .

Q: Describe how a conductor acquires a charge?

A:

Q: Power is defined as the rate of that is done per unit of

A: In Physics, Power is the rate of doing work. The unit of power is Watt.

Q: How much does it cost to operate a 1200-W hair dryer for 4 hours at 30 cents/kWh

A: Concept used: Net operation price of a device is found by multiplying its per unit cost with units…

Q: State and define SI unit of power.

A:

Q: A resistance of 37 ohms is connected to a 16 V battery. Calculate the heat energy in joules ?

A: Given data :     Time  =  t    Voltage  =  V    Resistance  =  R        To find :       Heat energy

Q: An electric clothes dryer is rated at 3,400 W. How much energy does it use in 30 min?

A: power of electric cloth dryer (P) = 3400 W time (t) = 30 min

Q: a 1150W hair dryer is operated on a 120v circuit for 20min. if electricity costs $0.20/kWh, what was…

A: