A 20 ohm-resistor is a coil of copper wire whose total mass is 45 g. What are the length and the diameter of the wire?

Q: What is the output voltage of a 3.00-V lithium cell in a digital wristwatch that draws 0.660 mA, if…

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Q: What is the resistance of copper wire that has a length of 1 kilometer and a diameter of 0.505 mm?

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Q: What is the resistance (in ) of a 21.5 m long piece of 27 gauge copper wire having a 0.361 mm…

A: Given data:  A piece of 27 gauge copper wire  Length (L) = 21.5 m Diameter (d) = 0.361 mm =…

Q: What is the change in temperature required to decrease the resistance for a carbon resistor by 10%?

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Q: The current in the figure below is 0.57 A. (Let the internal resistance of battery 1 be r1 = 1.5 Ω…

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Q: A cell of emf 1.5V and internal resistance 0.52 is connected to a conductor whose V -I graph is an…

A: Givenemf of cell, ε=1.5 VInternal Resistance, r=0.5 Ω

Q: A 100 W lightbulb carries a current of 0.83 A. How much charge flows through the bulb in 1 minute?

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Q: what is the current in a 110Ohm resistor when the potential difference across it is 120V

A: Write a given values of this question. R=110ohmV=120V

Q: A 43 Ω component is connected to a 12 V battery. How much energy is expended per second?

A: Given Data: The resistance of a battery is, R=43 Ω The voltage of a battery is, V=12 V   The…

Q: The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.492,…

A: Given that - EMF of the battery Internal Resistance of the battery To Find - We have to determine…

Q: A current of 1.50 A flows in a wire. How many electrons are flowing past any point in the wire per…

A: Step 1It is given that

Q: A car headlight filament is made of tungsten and has a cold resistance of 0.350 Ω. If the filament…

A: Given L = 4.00 x 10-2m R = 0.350 ohm Resistivity of tungsten ( ρ ) = 5.6 x 10-8ohm.meter

Q: What is the resistance of a 20 m length of copper wire with a diameter of 0.20 in. at 20°C?

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Q: What is the ohmic resistance of a resistor with the following color bands: green, blue, yellow,…

A: Given: Resistor code - green, blue, yellow, silver, red To find: Ohmic resistance =?

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

A: Given data: The length of the wire is, L= 100 m The radius of the wire is, r= 0.12 mm=0.12×10-3 m…

Q: A 15-ohm resistor has a constant current. If 3300 C of charge flow through it in 5 minutes what is…

A: We need to calculate the value of electric current in the circuit.

Q: Two resistors R1 = 6 Ω and R2 = 12 Ω are connected in parallel to each other and in series to R3 = 2…

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Q: A 9 V battery is connected to a 3 Q resistor in a simple circuit. What is the current passing…

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Q: A wire is 2.3 m long and has a diameter of 0.38 mm. When connected to a 1.2 V battery, there is a…

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Q: A 10.0 V battery is connected across two resistors in series. If the resistods have resistances of…

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Q: Two resistors are connected in parallel to a 220 V line. R1=50 ohms and R2=100 ohms. What is the…

A: If two or more resistors are connected in parallel, then the potential difference across all the…

Q: A 60-cm-long heating wire is connected to a 120 V outlet. If the wire dissipates 45 W, what are (a)…

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Q: What is the voltage across the terminals of a 23 N resistor that has 0.065 A of current flowing…

A: According to the Ohm's law,  V = I R  where, I is the current and R is the resistance and V is the…

Q: A current of 4.50 A flows in a conductor for 7.50 s. How many electrons pass a given point in the…

A: Given data:  Current (I) = 4.50 A Time (t) = 7.50 s Required: Number of electrons passed through…

Q: A 75-cm-long heating wire is connected to a 120 V outlet. If the wire dissipates 50W, what are (a)…

A: The given data are: L=75 cm=0.75 mV=120 VP=50 W Here, L denotes the length, V denotes the voltage,…

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: Three resistor connected in Parallel, R1= 4Ω,  R2= 5Ω, R3=8Ω. What is the total Resistance?

A: Resistance 1, R1 = 4 Ohm Resistance 2, R2 = 5 Ohm Resistance 3, R3 = 8 Ohm   The total resistance of…

Q: For the circuit in the figure, the current through the 6.00 Ω resistor is 4.00 A, in the direction…

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Q: What is the internal resistance of an automobile battery that has an emf of 12.0 V and a terminal…

A: Given: Emf of battery, ε=12.0 V Terminal voltage, V=15.0 V Current, I= 4.40 A    To determine…

Q: A 10-ohm resistor has a constant current. If 1200C of charge flow through it in 4 minutes what is…

A: Given, Time, t=4 min=240 s Charge, Q=1200 C

Q: Given the circuit below where a battery with EMF 12 V and internal resistance 2 ohms is energizing a…

A: Given : E = 12 V r = 2 ohms R = 4 ohms

Q: What is the resistance of a 1.6m -long copper wire that is 0.50mm in diameter?

A: The equation for the resistance of the wire is given by,

Q: Use "E" as the symbol for Voltage. R1 R, If ɛ = 12 V, R1 = 3.0 0 and R2 = 6.0 Q, what is. a. The…

A: R1=3 ohm R2=6 ohm ε=12 V

Q: In the figure below, the current in Rs is l6 = 1.40 A and the resista Q, R4 = 16.0 0, Rs = 8.00 Q,…

A: Giveni6=1.4 AR1=R2=R3=2 ΩR4=16 Ω, R5=16 Ω and R6=4 Ω

Q: How long does it take for 6 Coulombs of charge to move through wire if the current is 3 Amps?

A: We know that when charge q flows through the wire in time t current I is given by I=q/t

Q: A 10-ohm resistor has a constant current. If 1200 C of charge flow through it in 4 minutes what is…

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Q: A current of 2.2 A flows through a battery for 9 min. How much charge passes through the battery in…

A: The current passing through a battery is, The time taken by current across a battery is,

Q: a 4.00 meter long aluminum wire at 20 C has a radius of 2.5 x 10^-3 meter. what is the resistance of…

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Q: Two resistors connected in series across a 30V source. If R1 = 5 ohms and R2 = 8 ohms, what is the…

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Q: . A 60.0-W lamp is placed in series with a resistor and a 120.0- source. If the voltage across the…

A: Given: The power rating of the lamp is 60 W. The voltage across the lamp is 25 V. The total supplied…

Q: A copper transmission cable 19 km long and 16.5 cm in diameter carries a current of 33 A. How much…

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Q: When a 20 V battery is connected to a resistor, 25 A of current flows through the resistor. What is…

A: given: V=20 volt I = 25 A

Q: The current through the 4 N resistor in the portion of the circuit given is ( ) 10 V ww

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Q: A 15 V battery is connected in parallel to 3 resistors, resistor A has 8 ohms, resistor B of 5 ohms…

A: Battery is of 15 V  Equivalent Resistance in parallel  1/Req = 1/R1 +1/R2 +1/R3

Q: What is the magnitude of the current passing through the 4 SQ resistance in Amps? 12 V 8 V 2 2

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Q: What is the maximum voltage that can be applied to a 10-k Ω resistor rated at 1/4W ?

A: Given data The resistance is given as R = 10 kΩ. The Power is given as P=14 W=0.25 W.   The…