The power supply voltage is 15 V. Resistor 1 has a resistance of 1.5 ohms. Resistor 2 has a resistance of 3.0 ohms. What is the current flowing through the 1.5 ohm resistor?

Q: A toaster has a resistance of 10.8 ohms and is plugged into a 120 V power supply, what is the…

A: Write the given values with the suitable variables. R=10.8 ΩV=120 V Here, R is the resistance and V…

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 power consumed by the resistor of 20 ohm connected across 100 V source ?

A: Given, Resistance, R = 20 ohm Source Voltage, V = 100 V

Q: The potential difference across a resistor in a particular electric circuit is 360 V. The current…

A: Given data: Potential difference ∆V=360 V Current (I) = 18 A Need to determine the resistance of the…

Q: A heater has a resistance of 400Q when the potential difference across it is 12V. If this same…

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Q: What voltage will produce 0.4 A of current through a 4800 resistor?

A: Given: Current, I = 0.4 A Resistance, R = 4800 Ω To determine: Voltage, V

Q: As discussed in the chapter, a thermistor is a device whose resistance varies with temperature. At…

A: V=Voltage=1.2 VR=Resistance=10  kΩ

Q: Three resistors having resistances of 750 Ω, 200 Ω, and 110 Ω are connected in parallel. If the…

A: The situation is shown below: Let current i1 flow through resistor 750 ohm, i2 through 200 ohm, and…

Q: The resistance of an electric heater is 25 Ω when connected to 120 V. How much energy does it use…

A: Given: Resistance of the electric heater, R = 25 Ω  Potential difference, V = 120 V time duration of…

Q: Three resistors with resistances R1 = 11.5 ohm, R2 = 13.5 ohm, and R3 = 17.1 %3D ohm are is series…

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Q: In the schematic below two batteries are in series and drive current through the circuit as shown.…

A: Given data:  ΔV1 = 2 V    ΔV2 = 1.1 V R = 69 Ω Two batteries of 3.0 V and 4.5 V connected in series

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: The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.42,…

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Q: A power transmission line is hung from metal towers with glass insulators having a resistance of…

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Q: A water heater that is connected across the terminals of a 15.0 V power supply is able to heat 250…

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Q: In a circuit, the potential drop across the 10 resistor is 100 V. What is the current through the…

A: Given, Resistance of the circuit, R = 10 Ωpotential drop across the resistor, V = 100 V

Q: If a toaster has a resistance of 60 ohms and is plugged into a 120 volt outlet, how much current…

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Q: A copper wire has diameter 0.5 mm and resistivity of 1.6 × 10-8 Ω m. What will be the length of this…

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Q: A wire with a length of 2.0 m and a diameter of 1.0 mm has a resistance of 0.45 2. What is the…

A: Given data:  Length (L) = 2.0 m Diameter (d) = 1.0 mm = 1.0×10-3 m Resistance (R) = 0.45 Ω Required:…

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: 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: A high-voltage electricity transmission line is hung from metal towers with glass insulators having…

A: Given Resistance of wire = 0.85 × 109 Ω  Applied voltage = 180 kV We have to calculate the current

Q: At 20 degrees * C the carbon resistor in an electric circuit connected to a 5.0 V battery has a…

A: Given     Intial temparature T1 = 20°C  Resisteance at  20.C is R0 = 200 r   Final temparature T2…

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: What is the internal resistance of a dry cell which has an emf of 1.55 Volts if it has a short…

A: E.m.f of the circuit is E = 1.55 Volts Short circuit current is I = 22 A Suppose that internal…

Q: In a circuit, the potential drop across the 100 Ω resistors is 100 V. What is the current through…

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Q: The resistance of a wire varies directly as the length and inversely as the diameter. If a wire…

A: The resistance of a wire varies directly as the length and inversely as the diameter. R = ρLA =…

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

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Q: A device experiences a voltage drop of 4.0 V across it while a current of 4.0 mA flows through it.…

A: It is given that,

Q: What is the voltage across the terminals of a 22 ohms resistor that has 0•064 A of current flowing…

A: Given, Resistance of the resistor, R = 22 ohms current flowing through it, I = 0.064 A

Q: What will be the value of current through a resistor of 40 ohm when the potential difference…

A: Given, Resistance, R = 40 ohm Potential difference, V = 20 V

Q: The lightbulb used in a computer projector has a resistance of 80 Ω. What is the current through the…

A: Resistance, R = 80 Ω Voltage, V = 120V

Q: A power transmission line is hung from metal towers with glass insulators having a resistance of…

A: Given that resistance is 1.00×109 Ω, and voltage is 200 kV.

Q: A defibrillator sends a 6.75 A current through the chest of a patient by applying a 9500 V voltage…

A: Given data:  Current (I) = 6.75 A Voltage (V) = 9500 V Required: The resistance (R) in kΩ

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: When a 24 resistor is connected across a 12 V battery, a current of 482 mA flows. What is the…

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Q: Two resistors of 36 Q and 55 Q are connected in series. If the voltage drop across the 36-N resistor…

A: R1 = 36 ohm R2 = 55 ohm Voltage drop across R1 is V1 = I R1 = 50 V  What is voltage drop across R2

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

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Q: An aluminum wire is 400 m long and 0.7 cm thick. How much is its resistance? How much current can…

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Q: Three resistors A, B and C are connected in series to a 120-V supply. If the resistor A = 50 Ω and…

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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…

Q: A power transmission line is hung from metal towers with glass insulators having a resistance of…

A: Given data: Resistance of glass insulator, R=1.00×109 Ω Voltage, V=200 kV =200,000 V

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.