The resistance of an electric heater is  70 Ω  when connected to 120 V. How much energy does it use during  10 min  of operation?

Q: An electric heater is constructed by applying a potential difference of 121.2V across a wire with a…

A:

Q: An electric heater is constructed by applying a potential difference of 140.7V across a wire with a…

A: we know that;powerP=V2R

Q: When connected to a 120 V source, an electric heater is rated at 1200 W and a toaster at 6.0×10 2 W.…

A: Calculate the total power P=Pheater+Ptoaster=1200 W+600 WP=1800 W

Q: The potential difference across a resistor in a particular electric circuit is 360 V. The current…

A: Given data: Potential difference ∆V=360 V Current (I) = 18 A Need to determine the resistance of the…

Q: An electric heater is constructed by applying a potential difference of 158.4V across a wire with a…

A: Potential difference = V = 158.4 V Resistance = R = 5 ohm Power will be given by following formula:…

Q: A current of 22.7 A flows through an electric heater operating on 120 V.  What is the heater's…

A:

Q: An electric heater is constructed by applying a potential difference of 126.3V across a wire with a…

A: Potential difference (V) = 126.3 volts Resistance (R) = 5 ohm

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: given: Power P =30W voltage V =120v time t =4.1 m

Q: A metal wire has a resistance of 10.00 A at a temperature of 20.0°C. If the same wire has a…

A: The change in resisitance with respect to change in temperature shows a linear natur.therefore, we…

Q: A circuit consists of two resistors connected in parallel. If the total resistance is 1403 Q and one…

A: Given data:  Two resistors are connected in parallel combination RT = 1403 Ω and R1 = 2000 Ω…

Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 16.4 Q. When they are…

A:

Q: An electric heater is constructed by applying a potential difference of 108.4V across a wire with a…

A: Given, Potential difference V = 108.4 V Resistance R =5 ohms   We know the expression for power is…

Q: The heating element of a coffeemaker operates at 120 V and carries a current of 5.50 A. Assuming the…

A:

Q: Chapter 27, Problem 007 from A wire of resistance 5.1 Ω is connected to a battery whose emf ε is 4.0…

A: (a)Write the expression for energy transferred from chemical to electrical form.

Q: A 238 V, 40 W tungsten lamp has a working resistance of how many Ohms (zero decimal place)?

A:

Q: An electric heater is constructed by applying a potential difference of 110 V across a wire with a…

A:

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: P = V*I  30 = 120* I  I = 30/ 120  I = 0.25 A

Q: An electric heater is constructed by applying a potential difference of 99.6V across a wire with a…

A:

Q: The resistance of electric heater is 14 Ohm when connectedto 120 V What is the power consumption of…

A: Given, the resistance of electric heater is R=14 Ohm when connected to a voltage source, V=120 V We…

Q: The heating element of a coffeemaker operates at 120 V and carries a current of 2.50 A. Assuming the…

A: Given data The operating voltage of a coffee maker is V = 120 V. The current carried by the coffee I…

Q: A 150 W heating coil (like a light bulb) is designed to operate from 125 V. The coil is made from a…

A:

Q: An electric heater is constructed by applying a potential difference of 127V across a wire with a…

A: Potential difference (V) = 127 V Resistance of the wire (R) = 5 ohms Power rating of the heater = P…

Q: An electric heater is constructed by applying a potential difference of 151V across a wire with a…

A: Power rating of heater is given by (P) = V2R Watt V = 151 Volt R = 5 ohm

Q: The value of a resistor that carries 2 A when connected to 10 V is

A:

Q: The resistance of an electric heater is  70 Ω  when connected to 120 V. How much energy does it use…

A: Resistance of electric heater (R) = 70 Ω Voltage (V) = 120 V Time (t) = 45 min = 45×60 sec = 2700…

Q: The potential difference across a resistor is 4.4 * 10 ^ 2 V If the resistance of the resistor is…

A: Given data: Potential difference V =4.4×102 V Resistance of the resistor R=1.8kΩ=1.8×103Ω

Q: A device experiences a voltage drop of 4.0 V across it while a current of 4.0 mA flows through it.…

A: It is given that,

Q: Light bulb of an automobile dissipates 60 Watts when connected to a 12 Volt battery. What is the…

A: Power (P)  of light bulb= 60 W Voltage of the battery (V) = 12 volts

Q: An electric heater is operated by applying a potential difference of 50.0 V across a wire with a…

A:

Q: At 45°C, the resistance of a segment of gold wire is 67 N. When the wire is placed in a liquid bath,…

A:

Q: An electric heater is constructed by applying a potential difference of 99.6V across a wire with a…

A: Power = V2/R

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: Answer             b. 42.00

Q: An electric space heater has a resistance of 8.10 ohms. How much energy does it use when connected…

A: Given data:  Resistance (R) = 8.10 Ω Voltage (V) = 110 V Time (t) = 30 minutes Required: Energy (E)

Q: If a 60 W electric heater has a current of 4 A at 20°C, what will be the resistance if its…

A:

Q: A 240V household appliance has an electrical resistance of 194 Ohms. How much energy will it use in…

A:

Q: If an electrical component with a resistance of 62 Ω is connected to a 111-V source, how much…

A:

Q: If a lamp has resistance of 120 W when it operates at 100 W, what is the applied voltage?  a. 110 V…

A: The relation between power, voltage and resistance is P =V2RWhere, P =powerR =resistanceV =voltage

Q: A metal wire has a resistance of 10.0 l at a temperature of 20.0 ° C . If the same wire has a…

A: In the ques it is given that the resistance of wire is 10 Ω at 20°Cand 10.6 Ω at 90°C .

Q: An electric heater is constructed by applying a potential difference of 142.4V across a wire with a…

A: Given that the potential difference across a wire with a resistance.Then We have to determine the…

Q: The resistance of electric heater is 75 Ohm when connectedto 120 V What is the power consumption of…

A: Given that :Resistance of the electric heater (R) = 75 ohmVoltage ( V) = 120 VPower consumption (P)=…

Q: The resistance of electric heater is 32 Ohm when connectedto 120 V What is the power consumption of…

A: Answer:        Given Values,

Q: When the temperature is 130 degree C, the resistance of a resistor is 45 ohms. When the temperature…

A: Write the formula for the coefficient of resistivity of a given resistor. α=R-R0R01T-T0 The…

Q: An electric heater is constructed by applying a potential difference of 100V across a wire with a…

A: Given: voltage V = 100 V resistance R = 5 ohms To find: Power rating P =??

Q: 12 V 2.0 2

A:

Q: The resistance of electric heater is 13 Ohm when connectedto 120 V What is the power consumption of…

A:

Q: The heating element of an iron operates at 110 V with a current of 7 A. (a) What is the resistance…

A: Potential difference across the iron, V=110V Current across iron, I=7A Let the resistance and the…

Q: A 240V household appliance has an electrical resistance of 187 Ohms. How much energy will it use in…

A: Given: Voltage supply, V = 240 V Resistance, R = 187 Ω time taken, t = 52.8 s

Q: An electric heater is constructed by applying a potential difference of 91.4V across a wire with a…

A:

Q: The voltage V across a resistor was measured to be 898 mV and the current / through the resistor was…

A: Given Data:- The voltage across the resistor is V = 898 mV. The current across the resistor is I =…

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.