A flashlight bulb is rated 2.0 V, 0.23 A. How much power is required to operate the light bulb? Round your answer to three decimal places.

Q: A toaster operating on 120 V uses a current of 8.5 A. What is the toaster's power consumption and…

A:

Q: A calculator is rated 0.11 W and has an internal resistance of 22 Ω. What battery voltage is…

A: Power (P) = 0.11 W Internal resistance (r) = 22 ohm

Q: How much is the resistance of a 600 W, 12 V toaster?

A: Given: How much is the resistance of a 600 W, 12 V toaster? P=600 W V=12 V

Q: What voltage is involved in a 1.44-kW short circuit through a 0.100 - Ω resistance?

A:

Q: A 1.00-MΩ voltmeter is placed in parallel with a 75.0-kΩ resistor in a circuit. If the current…

A: Assume the resistance of the resistor is R1 = 75.0 kΩ. Assume the resistance of the voltmeter is R2…

Q: If a 3-W bulb is connected to a 120-V power line, how much current flows through it in amperes?…

A: Given data The power of the bulb is P = 3 W. The voltage of the power line V = 120 V. The current in…

Q: The resistance (in Ω) of a light bulb rated 40 W, 100 V that draws an electric current of 1.4 A is…

A:

Q: An electric device draws 2.5 A at 240 V. If the voltage drops by 35% what will be the current (in…

A: Given, Current I=2.5 A Voltage V=240 V

Q: For the voltage divider shown below, the output voltage is: 200 2 12 V 600 2 V out

A: We know that the resistance R1 = 200 ohm and R2 = 600 ohm  and the input voltage is Vin =  12 V Now…

Q: Calculate the unknown amount, and then calculate the power? 20 V 1 A 122 = 3 A 6 V

A: The 3 circuits are shown . Let them be named as a) , b) , c) To find = Unknown value from the…

Q: A current of 25.5 A flows through an electric heater operating on  220 V. What is the heater's…

A: In a electrical circuit we can apply ohm's law to calculate resistance because it states that…

Q: An electric heating device consumes a current of 1.98 A when connected to the 220 V mains supply. If…

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Q: Consider the terminal voltage of a 3.00 V lithium cell in a digital wristwatch that draws 29 mA.…

A: given: V=3.0 V Ii=29 mA = 29*10-3 ARi=1.8 Ω

Q: The lightbulb used in a computer projector has a resistance of  62 Ω. What is the current through…

A: I=VR

Q: What is the current in a 15.0-W light bulb when connected to a 131-V emf?

A:

Q: How many 13-watt W light bulbs can be simultaneously operated on a 120-volt [V] household circuit…

A: Given Voltage is V=12 V Current is I=15  A Power of light bulb is Plight bulb =13 W Find the number…

Q: What is the energy used to run a 9v circuit with a 90 ohm resistor for 10 seconds?

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Q: If a 4 Ohm resistor and a 12 Ohm resistor are conneted in parallel, what is the total resistance?

A: (given) Resistors R1 and R2 are connected in parallel. R1 = 4 Ω R2 = 12 Ω Resistance (R) = Potential…

Q: a heater is left on and uses 0.58 A when plugged into a 120 V line.  if electric power costs 12…

A: Assume that the current and voltage are RMS value, and the heater is purely resistive load.The power…

Q: How much current must be applied across a 60 light bulb filament in order for it to consume 55 W of…

A: Given data:  Resistance (R) = 60 Ω Power (P) = 55 W Required: Current (I)

Q: The light bulb used in an overhead projector has a resistance of 24 ohms. What is the current…

A: According to ohm’s law,

Q: A 240 V clothes dryer draws a current of 15 A. How much energy, in KWH and in joules, does it use in…

A: Write the expression for power of the dryer .

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: Two lightbulbs are in series, one operating at 120 W and the other operating at 60.0 W. If the…

A:

Q: What is the resistance (in Ω) of a 9.00 ✕ 102 Ω, a 2.90 kΩ, and 5.00 kΩ resistor connected in…

A: Given data:  R1 = 9.00 ×102 Ω = 900 Ω R2 = 2.90 kΩ = 2900 Ω R3 = 5.00 kΩ = 5000 Ω Resistors are…

Q: What resistance must be placed in a 20 ohm resistor to make the equivalent resistance 0.952 ohms?

A: Given: Total equivalent resistance, Req = 0.952 ohms Resistance, R1 = 20 ohms   To determine the…

Q: A bar of copper has a mass of 1.5 kg is to be drawn into a wire having a resistance 250 Ω at 20°C.…

A: Given: The mass of the copper wire is 1.5 kg. The resistance of the wire is 250 Ohm. The density of…

Q: What current flows through the bulb of a 3.00-V flashlight when its hot resistance is 3.60 Ω ?

A: The expression from Ohm’s law is,

Q: What is the magnitude of charge supplied by a 12 V battery in 2mins to lamp of power 60 Watts ?

A: Given: The electric potential is 12 V The time interval is 2 mins. The power of the lamp is 60 W.

Q: 125 V 20 Q 100 Q 50 Q

A: We know the resistance of the resistor, which are in parallel connection,  1R = 1R1 + 1R2 +…

Q: What is the maximum power in Watts that a single 1.5 V battery with an internal resistance of 0.8 Ω…

A: Given: The potential difference is 1.5 V. The resistance of the circuit is 0.8 Ω.

Q: Two light bulbs are in series, one operating at 120.0 W and the other operating at 60.0 W. If the…

A: Given Two light bulbs power = 120W and 60W Voltage                         = 120 V

Q: How many Wh of energy (rounded to an integer) will a 4.7 V, 3,015 mAh battery provide?

A:

Q: A light bulb is rated at 90W when connected to 120V. What would be the current if the bulb were…

A: According to the ohms law, V=IR

Q: An electric heater is constructed by applying a potential difference of 127.2V across a wire with a…

A:

Q: How many 3 2 resistors must be connected in parallel to have a total resistance of 0.6 Q?

A: Given data:  Resistors are connected in parallel  Resistance (R) = 3 Ω Total resistance (RT) = 0.6 Ω…

Q: What current flows through a bulb if 360 C of charge moves through a bulb in 20 minutes?

A:

Q: A 1.00-MΩ voltmeter is placed in parallel with a 75.0-kΩ resistor in a circuit. If the voltage…

A: The initial current through the resistance of 75 kΩ is, I=VR=V75 kΩ=V75×103 Ω The current passing…

Q: A cylindrical  resistor has a resistance of 289 Ohms. What is the resistance (in Ohms) if the length…

A:

Q: A flashlight bulb is rated 2.6 V and 0.30 A.  What is the bulb's resistance?  Round your answer to…

A: Resistance is,

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.