What is the electric field of a material when the current is equal to 25A, the resistance is measured to be 782, the current density equals 24A/m2, and the length the current flows is 100m?

Q: What is the electrical energy stored per 1 squared micron of cell membrane at the voltage -70 mV?

A: Area of cell membrane=A=1 micron2=1×10-62 m voltage=V=-70 mV=-70×10-3V

Q: If 1.8 miles of 24-gauge copper wire has a resistance of 0.18 kΩ and the resistivity of copper is…

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Q: How many electrons have passed through a light bulb during one hour if a current of 8 x 10 -2 A is…

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Q: Wire gauge is a measure of the the cross-sectional area of a wire. A 14 gauge speaker wire made of…

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Q: During lightning strikes from a cloud to the ground, a current of 20 kA occured and lasted for about…

A: Given: Current, I=24 kA=24000 A Time, Formula: Current is given as,

Q: a) If the electron concentration increase along the x-axis of a conductor as shown in equation…

A: Diffusion current is the current caused by the diffusion of current carriers, that is, holes and…

Q: If the potential difference across the two ends of a conductor is 5 V and the current through it is…

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Q: A metal object having a length (10m), cross section area (0.5 mm?), and resistance (0.52) is…

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Q: What is the value of current if a 1000 C charge flows in a conductor over a period of 5 minutes?

A: Given that Charge q = 1000 C Time for flow t = 5 min

Q: A copper wire is 10 cm long and has a cross-sectional area of 0.4 mm^2 and the resistance of the…

A: Write the equation of Ohm’s law and substitute the required values to determine the value of…

Q: a current 2A flows in a copper wire over a length of 3 km and 1,1 mm.known copper conductivity is…

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Q: A circuit is connected to a potential difference, V = 26.4 volts, at a power P = 2.2 watts. What is…

A: Given, Potential difference, V = 26.4 W Power,  P =2.2 W

Q: busbar made out of copper has a length of 12 inches. Its surface dimension is 1 cm by 1 cm. If the…

A: Given values:-  Length of copper,(L)=12 inch=12 x 0.0254 m=0.3048 m ----(1) [Using 1 inch=0.0254 m]…

Q: In a 2 ns interval, 10^8 electrons are discharged from a capacitor.  What is the average current…

A: Given: time interval of discharge, t = 2 ns = 2 × 10-9 s numbers of electrons get discharged, n =…

Q: What is the resistivity of a wire if it is subiected to a 2.50 X 102 V/m electric field, and has a…

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Q: When 115 V is applied across a wire that is 10 m long and has a 0.30 mm radius, the magnitude of the…

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Q: The resistance R of a conductor of length L and area of cross – section A carrying a current I is…

A: R is given by: a)R=ρALb)R=VIc)R=σAd)R=2mLne2τA

Q: A metal object having a length (10m), cross section area (0.5 mm2), and resistance (0.5N) is…

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Q: 3.0 A battery has an emf of 12 V and an internal resistance of 0.0500 2. What is the terminal…

A: Given : Emf (E) = 12 V Resistance (R) = 0.0500 Ω Current (I) = 8 A

Q: When a 200 ohm resistor, a 300 microfarad capacitor (uF) that's initially uncharged, and a 6-volt…

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Q: Given the electric field through a write is 0.50 V/m. The material used to make the wire has…

A: The drift velocity of electrons is the average speed at which electrons move through a conductor…

Q: A metallic wire with resistance 8Q, cross-sectional area 8.2x10 m, and conductivity a- 5.81x10 o'mis…

A: Write the expression for the current.

Q: A copper wire is 10 cm long and has a cross-sectional area of 0.4 mm^2 and the resistance of the…

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Q: The wire segment shown below is made of copper with a length of 300.0 m, across sectional area of…

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Q: A resistor of 9 ohms is carrying  a current of 4 amperes.  What is the voltage that would be…

A: Given data:  Resistance (R) = 9 Ω Current (I) = 4 A Required: Voltage (V)

Q: How many seconds will it take for 9.5 x 10¹² electrons (1.6 x 10^-19 C), take to pass through a…

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Q: An electric device delivers a current of 5 A for 10 seconds. How many electrons (1.6x10-19 C) flow…

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Q: How many free electrons are there in a rectangular block of a conductor whose dimension is 8 m by 4…

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Q: A potential difference of 9 V is maintained across a conductor in a circuit. If the conductor has a…

A: Potential difference of the battery, V = 9 V resistance of the conductor, R = 10 ohms time, t = 5…

Q: Iron has a resistivity of 9.71×10° Nm at 20°C. What will the resistivity of Lead when then…

A: We have given Resistivity at 20oC is   ρo= 9.71× 108 Ω.m Initial temperature To = 20oC  Final…

Q: Consider a circuit consisting of a battery (6.22 Volts) and three resistors in parallel. If the…

A: the effective resistance of the circuit is 1R=118.5 Ω+123.6 Ω+133.5 Ω=0.054+0.0424+0.0298R=7.924 Ω

Q: If a current of 5A flows through a conductor with a resistance of 7 ohms for 3 minutes, how many…

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Q: What is the heat produced in a conductor in 15.5 s if there is a current of 9.5 A and a resistance…

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Q: A new material is found to be superconducting below 77 K. How much resistance will a 75 mm long…

A: Given A new material is found to be superconducting below 77 K, 75 mm long  temperature of 69.3 K…

Q: Consider a circuit consisting of a battery (4.26 Volts) and three resistors in parallel. If the…

A: The objective of this question is to calculate the total current drawn from the battery when three…

Q: Use a variation model to solve for the unknown value. The current in a wire varies directiy as the…

A: solution according to ohm's law I=Vk/Rwhere k is a constant since V=80 voltsI=12 AR=10 ohmsputting…

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.