If a voltmeter of resistance 1.00 MΩ is connected to measure the voltage across the 83.0-kΩ resistor, what is its reading? Enter the absolute value of the reading. Where X = 8.20 V.

Q: A flash unit for a camera has a capacitance of 1700 μF. What resistance is needed in this RC circuit…

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Q: If two resistors with resistances R1 and R2 are connected in parallel, then the total resistance R,…

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Q: In the given circuit, find (a) the current through the 8.0ohm resistor and (b) the total rate of…

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Q: A battery is supplying electrical power to a single resistor 75 ohms. If the battery has a terminal…

A: solution as

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: For the circuit shown above, the emf of the batteries and the resistances are listed below.  ℰ1 =…

A: ℰ1 = 48 V, ℰ2 = 7 V, R1 = 13 Ω, R2 = 5 Ω , R3 = 16 Ω.

Q: How much work W does the battery connected to the 21.0-ohm resistor perform in one minute? Express…

A: emf = E = 12 Volts internal resistance = r = 3 ohms resistance = R = 21 ohms

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: When three identical resistors are connected in series to a battery 220 V, total dissipated power is…

A: Given Data : The power dissipated across the resistor is given as P = 45 W. The voltage of the…

Q: The graph below represents the relationship between the resistance and the length of a of a…

A: We know that the formula of the electric resistance is given as  R = ρLA R is the resistance  L is…

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: In the figure the ideal batteries have emfs ε1 = 18.2 V, ε2 = 9.68 V, and ε3 = 4.90 V, and the…

A: Consider the left Loop

Q: What is the resistance of a 20.0-m-long piece of 12- gauge copper wire having a 2.05 mm diameter?…

A: Given data: Length (L) = 20.0 m Diameter (D) = 2.05 mm = 2.05×10-3 m Resistivity (ρ) = 1.68×10-8 Ω…

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: 9. Given the following figures below, answer the proble 30 50 20 120 100 40 90 12 v 50 11 0 20V 30 B…

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

Q: A cubic resistor R of side length L=2 m and resistivity p=1.5×10-6 Qm connected to a battery ɛ= 1.35…

A: Given a cubic resistor R of side length L=2 m and resistivity ρ=1.5×10-6 Ω.m connected to a battery…

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: V=40V 3000 I 5000 1. In the circuit above, find the voltage used by the 500 ohm resistor.

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Q: In the circuit shown in the figure, two 360.0-Ω resistors are connected in series with an ideal…

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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…

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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: 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: A flash unit for a camera has a capacitance of 1300 µF. What resistance is needed in this RC circuit…

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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 capacitor of capacitance C = 1 µF is connected in series to a resistor of resistance R = 10 MN and…

A: Given: capacitance of capacitor, C = 1 μF = 10-6 F Resistance of resistor, R = 10 MΩ = 10 × 106 Ω…

Q: V=? 1=0.4A R=1500 R=2000 R=? V=4V 6. In the circuit above, find the resistance of the unknown…

A: Solution: R1 = 150 ohm R3 = 200 ohm R2 = ? V=? V2 = 4 V

Q: Two resistors are connected in parallel to a 220 V line. R1=50 ohms and R2=100 ohms. How much power…

A: Given value--- R1 = 50 ohms. R2 = 100 ohms . voltage = 220 V. We have to find--- How much power…

Q: Some digital thermometers measure the current through a semiconductor to determine a patient's…

A: Given data:  Resistance = R Initial temperature (T0) = 37.0°C Final temperature (T) = 53.8°C…

Q: consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.5…

A: Given data: Battery Voltage (V) = 6 V Wire Diameter (D) = 0.5 mm = 0.5×10-3 m Power (P) = 25 W…

Q: Three 925 Q resistors are wired in series. What is the total resistance of the combination? (Express…

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Q: A 300 ohms resistor and a 570 ohms resistor are in series. When this combination is connected across…

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Q: Standard automobile batteries have six lead-acid cells in series, creating a total emf of 12.0 V.…

A: The expression for the required individual emf of lead-acid cell,

Q: For the circuit shown, find the (a) total resistance (b) total current (c) current through each…

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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: consider a portable electric blanket that runs on a 4,5 V battery. ıf you use copper wire with a…

A: The resistance of the wire can be obtained as P=V2RR=V2P=4.5V220W=1.0125Ω

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: What is the resistance (in ohm) of the light bulb if it glows with full brightness when connected to…

A: R= 0.50 ohm

Q: If emf of the ideal battery is V = 100 V, what is the potential difference across R5 for the circuit…

A: Given data Voltage is V=100 V Find the potential difference across R5 for the circuit.

Q: What is the resistance of the 289-m standard 12 -gauge copper wire that is typically used in wiring…

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Q: The temperature coefficient of resistance for carbon at 0•C is -0.00048/•C. What is the significance…

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Q: A 100-W lightbulb has a resistance of about 12 Ω when cold (20 ∘C) and 124 Ω when on (hot). Estimate…

A: In metals, the value of the resistance changes with an increase in the value of temperature and thus…

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.