Three 925 Q resistors are wired in series. What is the total resistance of the combination? (Express your answer in Q).

Q: How long will it take 400 C of charge to pass through a circuit whose current is 1.5 A?

A: Given data :                Charge (Q) = 400 C               Current (I) = 1.5 A

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: What resistance will cause a current of 200uA, if the potential difference is 18V. O 0.092 O 9x10^3…

A: According to the ohm's law, V=IRR=VI

Q: Of what material is a wire made, if it is 25.0 m long with a 0.100 mm diameter and has a resistance…

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Q: In the circuit shown, how much voltage is used by B? 500 D A В O 3.93 V 3.35 V O 3.64 V 20V 100Q ww…

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Q: The resistance of an electric heater is  90 Ω  when connected to 120 V. How much energy does it use…

A:

Q: What is the resistance of a 2.00 x 102 -2, a 2.280 -k2, and a 4.00 -kQ resistor connected in series?…

A: Given:  Resistors are arranged in series of resistance, R1=2.00×102 Ω=2.00×102×10-3=0.2 kΩ R2=2.280…

Q: An electric heater is constructed by applying a potential difference of 140V across a wire with a…

A:

Q: Two identical resistors of 249 Ohms are configured in parallel and connected to a 12.8V power…

A: Resistance of the resistors R = 249 ohms Voltage of the power supply V = 12.8 V

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

A:

Q: A light bulb operating at 110 V draws 1.20 A of current. What is its resistance? 109 Q 78.6 Q 154 Q…

A: Given data:  Voltage (V) = 110 V Current (I) = 1.20 A Required: Resistance (R)

Q: The amount of charge flowing through a particular conducting wire is represented by the equation q…

A: charge through a wire is given by :q(t) = at3 + bt2 + c a = 5 A/s2b = 3 A/s At t= 0.9 seconds ,…

Q: Three resistors: 1.00×102 Ω, 2.50 kΩ, and 4.00 kΩ are connected in parallel, what is this circuit’s…

A: First resistance (R1) = 100 ohm Second resistance (R2) = 2500 ohm Third resistance (R3) = 4000 ohm…

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

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: What is the minimum number of 88@Ω resistors that must beconnected in parallel to produce an…

A: When all the resistors are connected in parallel, the expression for calculate resistance is…

Q: A platinum RTD PT100 measures 100 Q at 0 °C and 139.1 Q at 100 °C. Calculate the resistance of the…

A: If R1 and R2 are  the measured resistances at temperature T10Cand T20C respectively, then their…

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: For the circuit shown in Figure Q1 (b), use mesh analysis to find currents i, iz and is (b) 4Ω 10 V…

A: We want to find i1 , i2  and i3.

Q: Silver has a resistivity of 1.6x10-8 ohm-meters.  What is the resistance of a silver wire with a…

A: resistivity , ρ = 1.6 x 10-8 Ωm Radius , r = 0.59 mm = 0.59 x 10-3 m Length , L = 83 m To find =…

Q: What is the emf of a battery with a 0.15 ΩΩ internal resistance if the battery delivers 1.5 A to an…

A: According to the ohms law, emf of the battery is given by E = I×(R+r) where E = emf of the battery I…

Q: A copper wire 720 ft long has a resistance of 1.042 Ω. How long is a copper wire of the same size…

A:

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 = 30 W Voltage V = 120 V  time t = 4.1 min = 4.1 * 60 = 246 sec

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

A: Let the power is given by P. Let the time is given by t. Let the charge is given by Q. Let the…

Q: If a circuit has a resistance of 18 Q and a current of 15 A, what is the voltage? (A) 3.0 V (B) 4.0…

A: Write the given values with the suitable variables. R=18 ΩI=15 A Here, R is the resistance, and I is…

Q: A 320-km-long high-voltage transmission line 2.0 cm in diameter carries a steady current of 1,200 A.…

A: Given data: I = 1200 A charge density (n) = 8.5*1028 electrons per cubic meter Need to determine the…

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

A:

Q: FIGURE 2 shows a battery with emf E= 15 V and internal resistance r= 4 being connected to a resistor…

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: What is the resistance (in Ω) of a 34.5 m long piece of 16 gauge copper wire having a 1.291 mm…

A:

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

A: power of a bulb   P = VI And we know that  current is flow of electron in per unit time  I = q /t…

Q: Given the ammeter reading is 300 mA, what is the resistance of R2? R3 = 110 V7 = 6V R2 R, = 60 O 42…

A: Please see the answer below

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…

A:

Q: What is the total resistance of a circuit if 3 resistors, R1 = 91 ohms, R2 = 66 ohms, R3 = 44 ohms,…

A:

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

A: Power = 30 w voltage V = 120 V    Current through the light  I = P/ v  I = 30 / 120 = 0.25 A

Q: The resistance of a coil of copper wire is 3.35 2 at 0°C. What is the resistance at 50°? (copper, a…

A: The resistance and temperature relationship is R=R01+α(T-T0) Here R is resistance at temperature T,…

Q: What is the resistivity of a wire of 1.0 mm diameter, 2.0 m length, and 50 m resistance?

A:

Q: A 100 W light bulb designed to operate at 120 V has a filament with a resistance of 144 Ω.  What…

A: The metal or conductor which have high melting only those materials used as a bulb filament because…

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.