What is the Voltage needed to have 10 amps of current pass through a 4 ohm resistor?

Q: A 110-V hair dryer is rated at 1200 W. What current will it draw when operating from a 110-V…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: What is the current produced with a 9-V battery through a resistance of 100 Ω?

A: In the question it is given that,Emf of the battery, V=9vresistance of the resistor, R=100 Ω

Q: A subwoofer needs a household voltage of 110 V to push a current of 5.5 A through its coil. What is…

A: Given  Voltage V=110 V Current I=5.5 A

Q: A furnace for an electric heating system is rated at 121 amperes and 27,500watts. What is the…

A: Given: The current is 121 A. The power is 27500 W.

Q: If a circuit has a resistance of 20 ohms and a current of 18 A, what is the voltage ?

A: The answer is below

Q: What is the total circuit resistance when resistive elements of 5, 10, 15, and 20 Ω are connected in…

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Q: Three 20-Ohm light bulbs are wired in parallel. If they are connected to a 10 V potential…

A: Resistance, R = 20 Ω (three in parallel)  Voltage, V = 10 V  Current, I = ?

Q: What current flows through a hair dryer plugged into a 120 Volt circuit if it has a resistance of 25…

A: given that  voltage = 120 volt resistance = 25 ohms according to ohms law  V= IR

Q: A light bulb has 20 ohms of resistance, and it consumes 50 W of power. How much current flows…

A: Resistance (R) = 20 ohm  Power (P) = 50 W

Q: An electric toaster operating on 120 volts draws a current of 7 amperes. The resistance of the…

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Q: The voltage in an electrical circuit is 120 volt. Its resistance is 50 ohms. What is the current in…

A: Resistance of the  circuit =50 ohm Voltage across resistance =120 volts

Q: A circuit consists of a 10.0-ohm resistor, a 15.0-ohm resistor, and a 20.0-ohm resistor connected in…

A: Given data:  Three resistors are connected in parallel combination R1 = 10.0 Ω, R2 = 15.0 Ω and R3 =…

Q: How much power is used by a contact lens heating unit that draws 0.04 A of current from a 194 V…

A: Given data:  Current (I) = 0.04 A Voltage (V) = 194 V Required: Power (P)

Q: How much current would a 10-2 bread toaster draw when connected to a 110-V outlet?

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Q: What is the equivalent resistance of a 200 Ohm and an 800 Ohm resistor connected in parallel?

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Q: A light bulb has a resistance of 2402, when operating at a voltage of 120 V. What is the current in…

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Q: What is the cross-sectional area and diameter of tungsten wire that has a length of 1.0 meters and a…

A: Given data:   Length, L = 1 m    Resistance, R = 0.32 Ω

Q: What is the combined resistance of a 2 Ω and a 3 Ω resistor connected in series?

A: Given data-  R1 = 2Ω                       R2 = 3Ω   Explanation- if the two Resistances R1 and R2…

Q: if the current passes R1 is 25mA and the voltage at R2 is 25 V, what is the value of R2 ?

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Q: What battery voltage is necessary to supply 0.41 A of current to a circuit with a resistance of 16…

A: Given : Current (I) = 0.41 A Resistance (R) = 16 Ω

Q: What is the power used by a 4500 Ω resistor connected to a 9-V battery?

A: Given:  Resistance, R = 4500 Ω Potential difference, V = 9 V

Q: What is the current in a 40-watt bulb when it is connected to a 220-V outlet?

A: The power input required in a circuit is defined as the product of the voltage drop across the…

Q: is the resistance of a lightbulb that uses 0.5 amps and 110 volts?

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Q: What is the Output Voltage of a battery that expends 7.2J of energy in moving 1C of charge?

A: Energy expended by the battery = 7.2 J charge = 1 C

Q: There is a current of 0.73 Amps through a light bulb in a 120 Volt circuit. What is the resistance…

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Q: What resistance would produce a current of 200 amperes with a potential difference of 2,000 volts

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Q: What is the equivalent resistance of a 250 Ohm resistor and 500 Ohm resistor connected in series?

A: Given: The first resistance is R1=250 Ω. The second resistance is R2=500 Ω. The expression for…

Q: What is the voltage of a power source in a circuit that passes 3.6 A of current through a 4.2 Ω…

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Q: A 10-ohm resistor has a constant current. If 1,200 C of charge flow through it in 4 minutes what is…

A: Given data:  Charge (q) = 1200 C Time (t) = 4 min = 240 seconds Required: Current (I)

Q: If your cell phone has a battery that can hold 1124 milliampere-hours of charge, how long will the…

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Q: What is the voltage (in V) when the current is 168A and the resistance is 10ohms?

A: V= I.R Given V= ? I= 168 A R= 10 ohm

Q: A current of 1.5 A is flowing through a resistance of 22 Ω. What is the voltage difference across…

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Q: What is the power dissipated in a circuit if there is 3.0 N of resistance and there is 5.0 A of…

A: Answer             C) 75W solution We know that The power dissipated in the circuit is P= I2R Here I…

Q: What is the current in a circuit with a 120 V voltage supply and 500 Ohms of resistance ?

A: According to ohm's law Current in circuit, I = V/R    I = 120/500 I = 0.24 A

Q: What is the voltage across a 100 Ω resistor with a current of 4.5 amps?

A: Using Ohm's law, V=IR

Q: A current of 1.0 A is flowing through a resistance of 21 Ω. What is the voltage difference across…

A: Given : Current (I) = 1 A Resistance (R) = 21 Ω

Q: What is the resistance of a bulb if the current in it is 1.25 A when a 4 V voltage supply is…

A: It is given that, I=1.25 AV=4 V The resistance in bulb, using ohm's law is, V=IRR=VI=41.25=3.2 Ω

Q: A transformer has a primary coil with 6000 windings and a secondary coil with 120,000 windings.  If…

A: Given value--- Number of turns in primary coil = 6000. Number of turns in secondary coil = 12000 .…

Q: If the potential difference across a length of wire is 3V and the resistance is 5Ω.…

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Q: The voltage across a circuit is 120 V. If the 10-ohm resistor in the circuit is replaced with a…

A: Given: The supply voltage is 120 V. The itnial resistance of the circuit is 10 Ohm. The final…

Q: What is the current, in mA, of a 3 kilo-Ohm resistor hooked up to a 120 V voltage source?

A: Given,

Q: When connected to a 120-volt power supply, how much current exists in a light bulb that has a…

A: Write the expression for Ohm’s law. Here, V represents the voltage and R represents the resistance.

Q: What is the charge of an atom with 16 protons and 18 electrons?

A: We know that charge of 1 proton is 1.6022 x 10-19 coulomb                     charge of  1 electron…

Q: A small light bulb is connected to a 110 V battery and draws 13 A of current. What is the net…

A: A load (like a bulb) when connected with a battery of voltage V, then the current in the circuit is…

Q: What is the total resistance of eleven 33kΩ resistors connected in parallel?

A: Given data:  Resistance (R) = 33 kΩ Total number of resistors (n) = 11 All are connected in parallel…

Q: The current in an electric lamp is 5 amperes. What quantity of electricity flows towards the…

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Q: What is the total resistance if each resistor is 50 ohms

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