Answered: What is the value of the unknown R if…

Science

Physics

What is the value of the unknown R if the voltage across the 5002 resistances is 4 V? (Ans: 756.250)

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 36PE: A copper wire has a resistance of 0.500at 20.0°C, and an iron wire has a resistance of 0.525at the...

See similar textbooks

Related questions

Q: According to Ohm's Law, if you were to plot the voltage V on the vertical axis and the current I on…

A: Given data: Graph between voltage and current Voltage on the vertical axis and current on the…

Q: Francine investigates a circuit, where charge, Q = 28C. flows from one terminal of the battery to…

Q: A microwave is rated at 975 Watts. If it receives 240 Volts of potential difference, a) What is the…

Q: Write a mathematical relation for E (Stored Energy) in terms C (Capactiance) and V (Voltage)

A: Here we have to Write a mathematical relation for E (Stored Energy) in terms C (Capactiance) and V…

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

Q: The voltmeters in the figure measure RMS voltages. If V, = 23 V and V, = 14.5V what is V2? %3D C R L…

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

A: Emf of battery, E = 12 V Internal resistance of battery, r = 0.4Let I be the maximum current drawn…

Q: tem 2. How much energy is generated by a 1500-2 resistor connected to a 110-V source of potential…

A: Given data: Resistance, R=1500 Ω Potential difference, V=110 V Time interval, t=5 min=5×60 s=300 s

Q: By measuring the currents and times and then draw the current vs time graph using the measurement at…

Q: For the circuit in the figure, find the ones requested in the questions by using the following…

A: Given data: VS=9 V RA=6 kΩ RB=3 kΩ RC=4 kΩ A cut-in voltage of Si=0.7 VGe=0.3 V Assume all…

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: Q.4: Use the mesh analysis on a circuit at Figure 2 to find: a- Currents on resistors RL? b-…

A: Ans:- Image-1

Q: A current of I = 3.7 A passes through the circuit shown, where R = 78 Ω. (a) In terms of R, I, and…

Q: what is the V0 voltage?

Q: If the resistance of a conductor is 4000 Ω, the length is 8 m and the resistivity value is 2000,…

A: solution as

Q: What magnitude of current (in A) will flow in a 8 Q resistor if the potential difference across it…

Q: When the potential difference, V, across an ohmic resistor is increased, what effect does this have…

Q: A lamp (R, = 154 2), an electric heater (R, = 23 Q), and a fan (R3 = 49 Q) are connected in parallel…

A: According to the given data, R1, R2 and R3 are connected in parallel.The equivalent resistance of…

Q: By measuring the currents and times and then draw the current vs time graph using the measurement at…

A: ε = 8V R = 1 M Ω = 106 Ω C = 1 μF = 10-6 F I0 = 8 μA = 8 x 10-6 A To find = Current at t= 2.5 s

Q: According to the figure, how many V is the voltage value between cb?

Q: &page=D12 You are logged in a R1 15 Q What is the equivalent resistance of the parallel circuit if…

A: In the give circuit we have R1=15ΩR2=17Ωvoltage,v=20v

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: Find the voltage V

Q: A 10 mF capacitor is charged to a voltage of 200 V and discharged through a resistor. How much…

A: Ans:- Image-1

Q: What are the expected readings of the following in the figure below? (R = 5.80 N, AV = 6.50 V) A R…

A: The current does not flow through the ideal voltmeter, so it will act as an open circuit. There is…

Q: R2=30 2) Calculate the equivalent resistance, Total current, individual current and individual…

A: Given:Resistor, R1 = 2 Ω R2 = 3 Ω V = 5 V…

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: What is the potential difference across a 15 ohms resistor when a current of 6.5A passes through it?

Q: What are the expected readings of the following in the figure below? (R = 5.50 0, AV = 6.70 V) R ΔVν…

Q: What is the voltage drop across the 11 ohm resistor? Your answer V=? (60 V 42 v=?

A: Using Ohm's law to calculate the voltage drop across 11 ohm resistor,

Q: Calculate B(0). Draw B (measured values)- n curve for current 1A B(0) (mT) I (mm) R (mm) Measured…

A: All the required data is given . To find = Calculated magnetic field

Q: What will be the total resistance if the flow of current starts at R4?

A: Given data: Resistances R1=10ΩR2=10ΩR3=3ΩR4=12Ω

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: Find the total current flowing across R4 in the circuit below if R1 = 120 Ω, R2 = 40 Ω, R3 = 50 Ω,…

A: Given data The value of the resistance is R1 = 120 Ω. The value of the resistance is R2 = 40 Ω. The…

Q: What is the emfx of a cell being measured in a potentiometer, if the standard cell’s emf is 12.0 V…

Q: How much energy is imparted to an electron as it flows through a 20 V battery from the positive to…

A: Given: particle = electron charge q =e = 1.6*10-19 C potential V = 20 V

Q: What is the value of the unknown R if the voltage across the 500Ω resistances is 4 V?

Q: What is the emf Ex of a cell being measured in a potentiometer, if the standard cell's emf is 12.0 V…

A: Solution: Given that Es = 12 V Rx = 5.5 Ohm Rs = 1.9 Ohm

Q: A capacitor with capacitance C = 2.5 μF is charged to a voltage V = 5V. It is then discharged…

A: C = 2.5 μF V = 5 volts R = 100 ohm

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

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: Ohm's law states that V=IR where V is the voltage in volts (V), I is the current and R is the…

A: In the given question, According to ohms law, we kept voltage constant and varied resistance and we…

Q: What is the % conversion efficiency of a battery charger that inputs 22 W and outputs 1100 mA at 12…

A: The output power is Pout=VI=12 V1.1 A=13.2 W

Q: A silver wire of radius r- 0.5 mm and resistance 0.06 n is connected to a voltage source of 6.5 mV.…

A: Given: resistance of the silver wire R=0.06 ohm Voltage applied V=6.5 mV Radius of the silver wire…

Q: By measuring the currents and times and then draw the current vs time graph using the measurement at…

Question

Please include all necessary formula and solutions

3. What is the value of the unknown R if the
voltage across the 5002 resistances is 4 V?
(Ans: 756.250)
5500.
50Ω
|12V
R
5002

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

How does the resistance for copper and for silicon change with temperature? Why are the behaviors of these two materials different?
Consider the circuit below. The battery has an emf of = 30.00 V and an internal resistance of r = 1,00 . (a) Find the equivalent resistance of the circuit and the current out of the battery. (b) Find the current through each resistor, (c) Find die potential drop across each resistor, (d) Find the power dissipated by each resistor, (e) Find the total power supplied by the batteries.
When a straight wire is heated, its resistance changes according to the equation R = R0 [1 + (T T0)] (Eq. 17.7), where is the temperature coefficient of resistivity. (a) Show that a more precise result, which includes the length and area of a wire change when it is heated, is R=R0[1+(TT0)][1+(TT0)][1+2(TT0)] where is the coefficient of linear expansion. (See Topic 10.) (b) Compare the two results for a 2.00-m-long copper wire of radius 0.100 mm, starting at 20.0C and heated to 100.0C.
If electrical energy costs 0.12 per kilowatt-hour, how much does it cost to (a) burn a 100-W lightbulb for 24 h? (b) Operate an electric oven for 5.0 h if it carries a current of 20.0 A at 220 V?
When a straight wire is heated, its resistance changes according to the equation R = R0 [1 + (T T0)] (Eq. 17.7), where is the temperature coefficient of resistivity. (a) Show that a more precise result, which includes the length and area of a wire change when it is heated, is R=R0[1+(TT0)][1+(TT0)][1+2(TT0)] where is the coefficient of linear expansion. (See Topic 10.) (b) Compare the two results for a 2.00-m-long copper wire of radius 0.100 mm, starting at 20.0C and heated to 100.0C.
A copper wire has a resistance of 0.500at 20.0°C, and an iron wire has a resistance of 0.525at the same temperature. At what temperature are their resistances equal?
When 100.0 V is applied across a 5-gauge (diameter 4.621 mm) wire that is 10 m long, the magnitude of the current density is 2.0X108A/m2 . What is die resistivity of the wire?
The current through a 12-gauge wire is given as I(t)=(5.00A)sin(260Hzt)). What is the current density at time 15.00 ms?
A potential difference of 12 V is found to produce a current of 0.40 A in a 3.2-m length of wire with a uniform radius of 0.40 cm. What is (a) the resistance of the wire? (b) The resistivity of the wire?
A typical cell phone consumes an average of about 1.00 W of electrical power and operates on 3.80 V. (a) What average current does the phone draw from its battery? (b) Calculate the energy stored in a fully charged battery if the phone requires charging after 5.00 hours of use.
The diameter of wire A is greater than the diameter of wire B, but their lengths and resistivities are identical. For a given voltage difference across the ends, what is the relationship between PA and PB, the dissipated power for wires A and B, respectively? (a) PA = PB (b) PA PB (c) PA PB
A 14-gauge copper wire has a diameter of 1.628 mm. What magnitude current flows when the drift velocity is 1.00 mm/s? (See above example on Example 20.3 for useful information.)