A load of 1000 kg is to be lifted at a rate of 10 m/minute with the help of motor operating at 240 V and requiring a current of 10 A. The overall efficiency of the system is (Take g = 10 ms-²) (a) 48.6% (c) 74.8% 293) (b) 69.4% (d) 92.6%

A load of 1000 kg is to be lifted at a rate of 10 m/minute with the help of motor operating at 240 V and requiring a current of 10 A. The overall efficiency of the system is (Take g = 10 ms-²) (a) 48.6% (c) 74.8% 293) (b) 69.4% (d) 92.6%

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: A 1110 W radiant heater is constructed to operate at 115 V. (a) What is the current in the heater…

Q: A stationery shop use the following electric appliances: (i) Four Air Conditioner of rating 1600 W…

A: Given that, the number of instruments and its power and using time. Then We have to calculate the…

Q: Given that the delivered power to a resistor is equal to P when the current flowing in the resistor…

A: Given data: Current I =3.2I0

Q: A small vegetable shop use the following electric appliances: (1) Two Air Conditioner of rating 1500…

Q: A cauterizer, used to stop bleeding in surgery, puts out 1.98 mA at 16.5 kV. (a) What is its power…

A: Given that the cauterizer used to stop bleeding in surgery puts out current (I)=1.98mA=1.98×10-3A at…

Q: What current (in A) must be produced by a 12.0 V battery-operated bottle warmer in order to heat…

A: Given data: Potential difference ΔV= 12 V Mass of glass mg=74 g=0.074 kg Specific heat of the glass…

Q: certain toaste is a heating element made Nichrome wire the toaster is first connected to a 120-V…

Q: A 1050 W radiant heater is constructed to operate at 115 V. (a) What is the current in the heater…

A: a) We know that the formula of the power is given as P =VI where P is the power V is the voltage…

Q: What current (in A) must be produced by a 12.0 V battery-operated bottle warmer in order to heat…

A: Mass of glass = 70 g Mass of baby formula = 200 gMass of aluminum = 350 g Initial temperature = 20oC…

Q: Find the current through a person and identify the likely effect on her if she touches a 120-V AC…

A: Given: V = 120 V (a) R = 300 kilo ohm (b) R'= 4000 kilo ohm

Q: A certain toaster has a heating element made of Nichrome wire. When the toaster is first connected…

Q: Nichrome wire of cros0-sectional radius 0.777 mm is to be used in winding a heating coil. If the…

A: Given: Current, I =9.50 A Radius, r =0.777 mm Voltage, V =1.80×102 V

Q: If the power rating of a computer is 600W and the computer is plugged into a mains supply (230V),…

A: Given that:- Power rating of computer=600W Voltage supply=V=230Volt

Q: Nichrome wire is used in some radiative heaters. (a) Find the resistance (in Ω) needed if the…

Q: A short circuit in a 120 V appliance cord has a 0.300 resistance. Calculate the temperature rise (in…

Q: A 2002 load receives power from parallel-connected battery cells, as shown in the figure below.…

A: r1 = 1 ohm V1 = V2 = 12 V r2 = 1 ohm R = 20 ohm

Q: =9634 Given that the delivered power to a resistor is equal to P when the current flowing in the…

A: solution given as

Q: An electric winch operates on 170 volts [V] and draws 3 amperes [A] of current. The winch has an…

A: Given Data: Voltage V=170 volts Current I=3 A Efficiency of Winch η=66% Weight to be lifted W=520…

Q: A certain toaster has a heating element made of Nichrome wire. When the toaster is first connected…

Q: A 1450 W radiant heater is constructed to operate at 115 V. (a) What is the current in the heater…

Q: What current (in A) must be produced by a 12.0 V battery-operated bottle warmer in order to heat…

Q: A portion of Nichrome wire of radius 2.60 mm is to be used in winding a heating coil. If the coil…

Q: A toaster has a Nichrome (a=4.5x104 °C-) heating element that has a resistance of Ro= 80 Q at a…

A: Solution

Q: A toaster is rated as drawing 850 W of power at 120 V. The cord of the toaster is connected to an…

Q: A stationery shop use the following electric appliances: (i) Four Air Conditioner of rating 1900 W…

Q: Find the current through a person and identify the likely effect on her if she touches a 120-V AC…

A: We have-Applied voltage, V= 120 V Total resistance, R= 300 kΩ= 3×105 ΩWe know that-I=VRthen, I=120…

Q: A stationery shop use the following electric appliances: (i) Four Air Conditioner of rating 1900 W…

A: Electrical energy consumed by air-conditioners, for the month-E1=No. of air-conditioner×Rating of…

Q: Lightbulb A is marked "75.0 W 120 V," and lightbulb B is marked "100W 120 V." These labels mean that…

A: According to guidelines we need to solve only first three sub-part kindly repost other parts in the…

Q: The mechanical power output of an electric motor is 2.40 hp. The motor is connected to a 120 V…

A: Given Values, The power output of the motorP0=2.40 hp The voltage across the motor(V)=120 V The…

Q: Find the current through a person and identify the likely effect on her if she touches a 120 V AC…

A: Ohm's law states that the current (I) through a conductor between two points is directly…

Q: A Palduma water heater heats 1 liter (1000 cm?) of water from 19°C to 99°C in 10 minutes when 110 V…

Q: How much electrical energy (in kilojoules) is transferred to thermal energy in 2.90 hours by an…

A: Given: The time interval is 2.9 h. The resistance of the circuit is 384 Ohm. The potential…

Q: (a) An immersion heater utilizing 120 V can raise the temperature of a 1.00 X 102-g aluminum cup…

A: Given: (a) The Immersion heater utilizes 120 volt to raise the temperature of 1×102g aluminum cup…

Q: A certain toaster has a heating element made of Nichrome wire. When the toaster is first connected…

A: voltage = 110 volts initial temperature = 20oC initial current = 1.79 A current at final operating…

Q: Determine the resistance of the heating element in units of ohms [Q).

A: Given, power supply voltage Vin=24V the efficiency of the heater η=73% output power Pout…

Q: water

Q: Problem 4: Find the power dissipated (in W) in each of the following extension cords: Part (a)…

A: The power dissipated, P = I2 × R Where , The current = I The resistance = R

Q: An initially uncharged 4.77 x 10- F capacitor and a 6550 2 resistor are connected in series to a…

A: Given: C = 4.77*10-6 FR =6550 ohmV = 1.50 volt

Q: A certain toaster has a heating element made of Nichrome wire. When the toaster is first connected…

A: Given that :V=110 VI∘=1.61 Aθ=20°I=1.55 A

Q: A 240-kV power transmission line carrying 5.00×102 A is hung from grounded metal towers by ceramic…

A: Given Data: The voltage in the power transmission line is, V=240 kV The current in the line is,…

Concept explainers

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.

Question

A load of 1000 kg is to be lifted at a rate of 10
m/minute with the help of motor operating at
240 V and requiring a current of 10 A.
The overall efficiency of the system is
(Take g = 10 ms-²)
(a) 48.6%
(c) 74.8%)
(b) 69.4%
(d) 92.6%

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Do it
ASAP
A certain toaster has a heating element made of Nichrome wire. When the toaster is first connected to a 110-V source (and the wire is at a temperature of 20.0°C), the initial current is 1.67 A. The current decreases as the heating element warms up. When the toaster reaches its final operating temperature, the current is 1.49 A. (a) Find the power delivered to the toaster when it is at its operating temperature. W (b) What is the final temperature of the heating element? °C Need Read
A certain toaster has a heating element made of Nichrome wire. When the toaster is first connected to a 120-V source (and the wire is at a temperature of 20.0°C), the initial current is 1.87 A. The current decreases as the heating element warms up. When the toaster reaches its final operating temperature, the current is 1.45 A. (a) Find the power delivered to the toaster when it is at its operating temperature. W (b) What is the final temperature of the heating element? °℃
Given that V= J/A-s and 1 Kwh = 3.6x106 J, what does it cost to operate a window-type air conditioning for one hour if the unit requires a 10-Amp current at 110V and electric energy costs 5 cents per kWh? Compute the cost at 5.0 cents/Kwh of operating an electric motor that takes 15 Amp at 110V.
The heating element of an electric coffee maker operates at 120 V and carries a current of 2.00 A. Assumingthe water absorbs all the energy delivered to the resistor, calculate the time interval during which thetemperature of 0.500 kg of water rises from room temperature (23.0°C) to the boiling point.
A cauterizer, used to stop bleeding in surgery, puts out 2.00 mA at 16.0 kV. (a)What is its power output (in W)? (b)What is the resistance (in MΩ) of the path?
Nichrome wire of cross-sectional radius 0.764 mm is to be used in winding a heating coil. If the coil must carry a current of 9.75 A when a voltage of 2.70 × 102 v is applied across its ends, find the following. (a) the required resistance of the coil (b) the length of wire you must use to wind the coil m
A certain toaster has a heating element made of Nichrome wire. When the toaster is first connected to a 120-V source (and the wire is at a temperature of 20.0°C), the initial current is 1.79 A. The current decreases as the heating element warms up. When the toaster reaches its final operating temperature, the current is 1.47 A. (a) Find the power delivered to the toaster when it is at its operating temperature. W (b) What is the final temperature of the heating element? °C
Nichrome wire of cross-sectional radius 0.795 mm is to be used in winding a heating coil. If the coil must carry a current of 9.00 A when a voltage of 3.00 × 102 V is applied across its ends, find the following. (a) the required resistance of the coil (b) the length of wire you must use to wind the coil m
Asap d e f within 20 minutes
The current io in the circuit in Figure below 2 A. Verify that the total power dissipated in the circuit equals the power developed by the 180 V source. 60 Ω 50 251 180V 3 70n { 350