R 2R 28 4R 3R

Q: QUESTION 1 A cylinderical resistor of radius R=65 mm and length L= 87 cm is made of material that…

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Q: A wire has a current density of 7.77 x 10° A/m“. If the cross-sectional area of the wire is 3.57…

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Q: What electric field strength is needed to create a 4.0 A current in a 1.6-mm-diameter iron wire?

A: Current, I = 4.0 A Radius of the wire, r = 0.0008 m

Q: A 0.50 [mm] diameter silver wire carries a 20 [mA] current. What is the electric field in the wire?…

A: All the free charges in a conductor flows on the surface of the conductor. Due to this the free…

Q: A rectangular block of copper has sides of length 12 cm, 22 cm, and 46 cm. If the block is connected…

A: Given, A rectangular block of copper has sides of length 12 cm, 22 cm, and 46 cm and the block is…

Q: Energy is to be transmitted over a pair of copper wires in a transmission line at the rate of 20.0…

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Q: (5) Current is flowing through a cylindrical copper wire with radius 6.33mm and length 92.1cm. This…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: What electric field strength is needed to create a 4.8 A current in a 1.6-mm-diameter iron wire?

A: Given:Current  = 4.8 ADiameter of wire = 1.6 mmRadius of wire = 0.8 mm

Q: A 5MV battery is connected across a load having a Resistance of 180 KQ. How much current flowing in…

A: Given that the value of voltage and resistance.Then We have to determine the the current flowing in…

Q: block of copper has sides of length 17 cm, 23 cm, and 41 cm. If the block is connected to a 7.7 V…

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Q: An iron wire with cross section 2.5x10^-6 m^2 carries current 126 A. Find the drift velocity Vd, in…

A: The drift velocity can be given by vd=IneA

Q: At what temperature (in Celsius) will aluminum have a resistivity that is three times the…

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Q: At what rate (in W) is thermal energy generated in the 5- resistor when ɛ = 24 V? 5.0 2 10 2 10 2 10…

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Q: A coil of Nichrome wire is 25.0 m long. The wire has a diameter of 0.400 mm and is at 20.0°C. If it…

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Q: How much energy is dissipated as heat during atwo-minute time interval bya 4.5 k resistor which has…

A: Given : t = 2 minutes = 2 x 60 = 120 s R = 4.5 kΩ = 4500 Ω V = 20 V

Q: The figure gives the electric potential V(x) along a copper wire carrying uniform current, from a…

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Q: A lightbulb in a home is emitting light at a rate of 120 watts. If the resistance of the light bulb…

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Q: I am not sure how to complete this problem. Can you please explain A through D?

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Q: 7.1. In the figure below, &=12V and &z=8V. What is the direction of the current in the resistor? A…

A: To answer the given question, we will replace the batteries with an equivalent battery.

Q: A material of resistivity ρ is formed into the shape of a truncated cone of height it as shown in…

A: Resistance is defined as an opposition to flow of current. It depends on the type and area of the…

Q: For the resistor network shown, what fraction of Vs will be measured at Vout? Resistor Combinations…

A: When two resistances are in series , their equivalent resistance is  Req = R1 + R2 When two…

Q: current of I = 7.3 A is passing through a conductor with cross sectional area A = 6.5 × 10-4 m2. The…

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Q: Two cylindrical wires are cojoined sequentially with one wire twice as thick as the other. If this…

A: Thickness of first wire= 1 mm  Thickness of second wire = 2 mm Current flowing through 1 mm thick…

Q: A current of I = 1.4 A is passing through a conductor with cross sectional area A = 4.5 × 10-4 m2.…

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Q: A coil of Nichrome wire is 22.0 m long. The wire has a diameter of 0.340 mm and is at 20.0°C. (a) If…

A: The given values are,

Q: The 3m long copper cable with a cross-sectional area of 81 mm² draws a current of 100 A when used to…

A: Given data:  Length of copper cable (L) = 3 m Cross section area (A) = 81 mm2 = 81×10-6 m2  Current…

Q: current of I = 1.4 A is passing through a conductor with cross sectional area A = 4.5 × 10-4 m2. The…

A: given that i = 1.4 Amp  A=4.5 × 10-4 m2  n = 9.7 x 1027 m-3 we know that i = neA Vd

Q: Suppose a kite string of radius 2.00 mm extends directly upward by 0.800 km and is coated with a…

A: To find the current through the water layer we need to find the resistance of the water layer.…

Q: 5V R = 20 R, = 20 5V 3V 3V +. 26. What is the current / across R/? A. 0 A В. ТА C. 2 A D. 9 A E. 18…

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Q: The   density and   resistivity of a cubic   metal of mass m=81 g are    d=3 g/cm3 and ρ=1.5 x 10-8…

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Q: Taking R = 2.20 k and E = 190 V in the figure below, E b + R mA 4R 3R 2R d + 28 determine the…

A: R =2.20kohm, ε =190v for loop abca ε = I1R+4R(I1-I2) or ε =5R I1-4RI2 ___________(1) For loop eace…

Q: In the Bohr model of the hydrogen atom, an electron in the 4" excited state moves at a speed of 1.37…

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Q: In the Bohr model of the hydrogen atom, an electron in the lowest energy state moves at a speed of…

A: The time is,

Q: A lightbulb in a home is emitting light at a rate of 120 watts. If the resistance of the light bulb…

A: Given data:  Power (P) = 120 W Resistance (R) = 15.0 Ω Required: Current (I)

Q: (i) What is the accuracy of a measurement of 26.5gm taken as against 25gm? (ii) State the types of…

A: (1) Percentage accuracy = |measured value - accepted value|accepted value * 100…

Q: What is the maximum value in the tolerance range of a resistor with color code…

A: What is the maximum value in the tolerance range of a resistor with color code…

Q: Taking R = 1.00 kΩ and ε = 250 V in Figure P18.21, determine the direction and magnitude of the…

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Q: Switch S shown in Figure P28.71 has been closed for a long lime, and the electric circuit carries a…

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Q: half its initial value, how long (in terms of T) does it take for the stored energy to drop to half…

A: Given: A capacitor discharge through a resistor and it takes Time t for charge of capacitor and at…

Q: R 2R be + 28 4R 3R a +

A: R = 1.20 kΩ  ℰ = 470 V  The magnitude and direction of the current in the horizontal wire between a…

Q: Taking R = 1.50 kΩ and ε = 150 V in the figure shown below, determine the magnitude and direction of…

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Q: (5) Current is flowing through a cylindrical copper wire with radius 6.33mm and length 92.1cm. This…

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Q: A rectangular block of copper has sides of length 11 cm, 22 cm, and 37 cm. If the block is connected…

A: according to the ohms law, I=VR                              {1}

Q: A conductive thin spherical shell with radius r1=1mm is placed in the center of another conductive…

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.