How much will it cost to run an electric motor for 10 days if the motor draws 15 A of current from the 240-V power line? The cost of electricity is 7.5¢/kWh

Q: Two identical R= 9.91 ohm light bulbs are connected in parallel to a 10.5 volt battery. How much…

A: Given that:- Two identical light bulbs are connected in parallel. Resistance of the bulbs, R1 &…

Q: A color television set draws about 2.5 A when connected to a 120-V source. What is the cost (with…

A: Given data:  Current (I) = 2.5 A Voltage (V) = 120 V Cost of electricity = 8 cents/kWh Time (t) =…

Q: a student in the laboratory connects a 13 resistor, a 26 resistor, and a 36 resistor in parallel and…

A: The resistance of resistors are 13 Ω, 26 Ω and 36 Ω. The voltage of the dc source is 42 V.

Q: A power transmission line carries 520 A of current at a voltage of 924 kV. If the line has a…

A: I = 520 A R = 48 μΩ/m = 48 x 10-6 Ω/m d = 509 km = 509 x 103 m P = ?

Q: How much electrical energy (in kilowatt hours) would a 45.0 W light bulb use in 60.0 days if left on…

A: Given that                     The power of the bulb is (P) = 45W                      Time = 60days…

Q: How much energy per unit time does a 6.0 V portable radio use if it draws 250 mA of current?

A: Given data :-                                Voltage V = 6 volt…

Q: A certain electric motor draws a current of  72 A  when connected to 120 V. (a) What is the motor's…

A:

Q: What is the effective resistance of a car's starter motor when 145 A flows through it as the car…

A: The relation between voltage, current and resistance through a conducting medium is, V=IR or, R=VI

Q: A heating element is marked 210 V, 630. What is the value of the current drawn by the element when…

A: The heating element is marked with the the maximum voltage and power it can endure. In this case it…

Q: What is the effective resistance (in Ω) of a car's starter motor when 144 A flows through it as the…

A: Current is Voltage is Find:Resistance of vehicle's motor.

Q: 44.2 Ω resistor and a 93.8 Ω resistor are connected in parallel, and the combination is connected…

A:

Q: A color television set draws about 1.9 A when connected to a 220-V source. What is the cost (in…

A: Power of television is P=IV=1.9 A220V=418 W=0.418 kW

Q: an insulatung spiere radius T O centimeters irge coulombs Is distri Volume the insulating spn…

A: Given that:- Radius of insulating sphere=R=10cm

Q: The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value.…

A: Given, Electricity cost = 0.12$/kWh And power P=Et So, E=P.t a) Power = 40W total time, t =7days=…

Q: A 50.7 ohm resistor is put into a circuit with a 16 volt battery. What is the power dissipated (in…

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Q: A compact fluorescent lamp (CFL) uses less energy than its equivalent incandescent bulb. How much…

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Q: A block heater of a car is designed to keep the oil in the engine block warm during cold weather. If…

A: Given data:  Voltage (V) = 120 V Current (I) = 3.30 A Required: Power (P)

Q: Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the…

A:

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: What is the effective resistance (in Ω) of a car's starter motor when 146 A flows through it as the…

A: The effective resistance of car's starter motor is 0.076 ohm.

Q: John uses a 9 W light bulb in his bedroom which he turns on before going to sleep and then turns off…

A: Given data:  Power of light bulb = 9 W Daily uses = 8 hours  Power of LED night light = 1 W Energy…

Q: In the figure shown, the total resistance is 15.0 kΩ and the fem of the battery is 24.0 V. the time…

A: Given that the value of resistance and voltage and time constant. Then We have to determine the…

Q: The power rating of an electric motor that draws a current of 3.0 A when operated at 120 V is О . 40…

A: Given data I=3 AV=120 V

Q: A light-rail commuter train draws 630 A of 650-V DC electricity when accelerating. (a) What is its…

A: The applied potential,   The current flow,

Q: The potential difference across a resting neuron in the human body is about 75.0 mV and carries a…

A: Given that,Potential difference : V = 75.0 mVcurrent : i = 0.200 mAPower : P = voltagexcurrentHere…

Q: A hot plate of an electric oven connected to a 220 V line has two resistance coils A and B, each of…

A: The supply voltage is 220V and the resistance of coil is 24  ohm. (a)If the coils are considered…

Q: At what rate is energy supplied from a 1.00 volt battery with a current of 0.200 amps? P = IM W

A: The rate at which energy is supplied from a battery can be calculated using the formula: Power (P) =…

Q: Two 75 W (120V) light bulbs are wired in series, then the combination is connected to a 120 V power…

A:

Q: The generator at a large power plant has an output of 1,400,000 kW at 28,000 V. (a) If it were a DC…

A: Given data: The power is P=1400000 kW The potential is V=28000 V Calculating the current as…

Q: What power (in kW) is supplied to the starter motor of a large truck that draws 235 A of current…

A:

Q: The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value.…

A:

Q: An older electric water heater uses 10.0 of power while it's on, but it's only on for 2 hours every…

A:

Q: An electric motor raises a 41.6-pound-force platform loaded with 7.55-pound-force bags of calcium…

A: Given That: Mass of load raises by motor, m=46+7.55=49.15 lb≈22.3 kg The Level of Height, h=15…

Q: Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the…

A: Given Efficiency η=95% Voltage V=12 V Mass m=828 kg (a) The required power is,…

Q: A laptop can be powered by an adapter that provides a 19.5V voltage and a 9.23 A current. What is…

A: Voltage provided by adapter (V) = 19.5 VCurrent (I) =9.23 A

Q: of decorative outdoor lights is left on for 12.0 h. The lights draw a current of 2.00 A, and run on…

A: Given  Time t  = 12 h = 12×60 × 60 =  43200 sec  Current I = 2 A  Potential difference V = 120 V

Q: The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value.…

A: Electricity cost  = $0.120 /kWh

Q: An 11.6 W energy efficient fluorescent light bulb is designed to produce the same illumination as a…

A: The energy is a scalar quantity , which represents the ability to do a certain work or process . The…

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.