An electric lamp of 100 Ω, a toaster of resistance 50 Ω, and a water filter of resistance 500 Ω are connected in parallel to a 220 V source. What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances, and what is the current through it?

Q: storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.4 Ω,…

A: In the given question, EMF of the battery E = 12 V Internal resistance R = 0.4 Ω The amount of…

Q: current of 2.22 is generated from a battery whose internal resistance is 0.06. You measure the…

A: Given : Current , I = 2.22 A  Internal resistance , r = 0.06 ohm  Voltage , V = 0.98 V  To Find :…

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 27-V battery is connected to this network of resistors. The resistance ?R shown is 10.2 Ω. (a)…

A: Given, Voltage V= 27 Volt and resistor R = 10.2 ohm

Q: An electric heater is constructed by applying a potential difference of 158.8V across a wire with a…

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Q: A storage battery of emf 8.0 V and internal resistance 0.52 is being charged by a 120 V dc supply…

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Q: A resistor with a resistance of 3 Ohms is connected in parallel with a resistance with a resistance…

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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: Two batteries A and B are connected in parallel and load of 10 ohms is connected across their…

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

A: Equivalent emf, when two cells are in parallel Emf = E1×r2 + E2 × r1/(r2 + r1)  And the equivalent…

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

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Q: conductor has radius of 1.50 cm. How many centimeters of a material with 3.00 x 10^-2 Ω•m…

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Q: A wire of diameter 0.800 mm and length 25.0 m has a measured resistance of 1.60 2. What is the…

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Q: An electric heater is constructed by applying a potential difference of 160V across a wire with a…

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Q: R a b. Battery

A: Emf = 6.6 volts R = 6.2 ohm r = 1.4 ohm

Q: A small bulb is rated at 5.9 W when operated at 125 V. The tungsten filament has a temperature…

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Q: A circuit is made of two 1.2 volt batteries and three light bulbs as shown in the figure. When the…

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Q: An electric utility company supplies a customer's house from the main power lines (120 V) with two…

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Q: A small bulb delivers an electrical power of 7.5 W when operated at 125 V. The tungsten filament has…

A: Power = 7.5 WV = 125 volts Using P = V2/RR = 1252 /7.5R = 2083.33 ohm α = 4.5 * 10-3

Q: An electrician plans to cut a copper wire with more than 10Ω resistance (p=1.724*10-8m). The radius…

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Q: A battery having an emf of 12.4 Volts and an internal resistance of 0.02 ohm is connected to an…

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Q: An electric heater is constructed by applying a potential difference of 132.5V across a wire with a…

A: Given: P.D across wire, V=132.5 V Resistance, R=5 Ω Let's find power rating of heater.

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

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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: A 50 v battery with an internal resistance of 5 ohms has a terminal voltage of 45 v when  attached…

A: Given: The emf of the battery is 50 V. The internal resistance of the battery is 5 ohm. The terminal…

Q: electric lamp of 100 Ohms, a toaster of resistance 50 Ohms, and a water filter of resistance 500…

A: Resistance of electric lamp (R1) = 100 Ω Resistance of toaster (R2) = 50 ΩResistance of water filter…

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

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Q: An electric heater is constructed by applying a potential difference of 120 V across a wire with a…

A: Given data:  Potential difference (V) = 120 V Resistance of wire (R) = 5.0 Ω Required: The power…

Q: A resistance thermometer using a platinum wire is used to measure the temperature of a liquid. The…

A: Given data: The resistance is R1=2.42 Ω. The resistance is R2=2.98 Ω The thermal coefficient is…

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

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Q: A battery is manufactured to have an emf of 24.0 V, but the terminal voltage is only 22.0 V when the…

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Q: 10.0 0 2.5 V Figure shows a circuit which consists of a battery connected in series with a 10.0 0…

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Q: A 100 m long copper wire of radius 0.12 mm is connected across a 1.5 V battery. Calculate (a) the…

A: The given data are listed below with suitable variables. Here, L denotes the length, r denotes the…

Q: A current of 50 mA is fed to a 100 2 resistor. What are the potential difference and power one would…

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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: current of 2.16 is generated from a battery whose internal resistance is 0.85. You measure the…

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Q: A small bulb is rated at 7.50 W when operated at 125 V. The tungsten filament has a temperature…

A: Power of bulb P = 7.50 W at voltage V= 125 V Temperature coefficient of resistivity α = 4.50 * 10-3…

Q: Gold is the most ductile of all metals. For example, 2 gram of gold can be drawn into a wire 2.4 km…

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Q: A light bulb has a resistance of 2400, when operating at a voltage of 120 V. What is the current in…

A: By ohm's law the relation between voltage, current and resistance is given by  V = IR          Where…

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: 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: To prepare breakfast, a mother simultaneously turned on a 1500 W bread toaster, 500 W coffee maker,…

A: To determine: (a) The resistance of each appliance

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

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Q: A carbon resistor has a resistance of 18 Ohm at a temperature of 20degree C. What is its resistance…

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Q: A galvanometer of resistance 50 2 is connected to a battery of 3V along with a resistance of 2950 N…

A: Given : RG = 50 Ω V = 3 V R = 2950 Ω