Relation between current and voltage.

Q: An electron has a charge of 1.6 EXP-19 C. A flow of 1000 electrons/second constitutes a current of

A: Given: magnitude of Charge of one electron is qe = 1.6×10-19 C Flow of electrons is n = 1000/second.

Q: A charge of 20 C flows out from a battery in 8 s. How much current passes through the lamp

A: We have to find the current passed through the lamp Current is defined as the rate of flow of charge…

Q: 3. Which of the following statement is true? a) Current can exist without voltage c) Current can…

A: Without any voltage in a circuit, the current cannot exist, because the voltage makes the current…

Q: What is the relationship between current, voltage, and resistance? Explain.

A: The relationship between current, voltage and resistance is expressed by Ohm's Law. This states…

Q: How do we measure electrical force?

A: Given:  Electric force

Q: 3. When a 12.0-V car battery powers a single 30.0 W headlight, how many electrons pass through it…

A: Given Data, Power of the headlight (P)=30.0 W Voltage (v)=12.0 V

Q: 3. Calculate the current density in a gold wire at 20°C, if an electric field of 0.740 V/m exists in…

A: Given, Temperature, T=200 C, and electric field, E=0.740 V/m.

Q: 4 - A steady current of 0.50 A flows through a wire. What is the charge passing through the wire in…

A:

Q: Describe what happens to the terminal voltage, current, and power delivered to a load as internal…

A: Aging of batteries

Q: 3. If a current drawn by a circuit with a resistance of 4.3 kN doubles when you halve the…

A:

Q: 15. (II) Eight 7.0-W Christmas tree lights are connected in series to each other and to a 120-V…

A: Formula            P = V*I      Ohm's law   I=V/R    Now,.  P= V^2/R  Here.   ,.   P = power of…

Q: An electric current of 210 amperes passes through the starter device in a car engine, if the voltage…

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Q: 3. The charge passing through a wire is q = (80t + 20) C. What is the current?

A:

Q: 2. Find the drift velocity, if the voltage is 4 V, length is 60 cm, area is 2 m², resistance is 5 kN…

A: Voltage (V) = 4 volts Length (L) = 60 cm = 0.6 m Area (A) = 2 m2Resistance (R) = 5000 ohm Number of…

Q: 5- Prove that the equation of continuity is given by ap + V.J = 0 at Where p is the volume charge…

A:

Q: 9- A steady current of 0 50 A flows through a wire. What is the charge passing through the wire in…

A: Given date current I = 0.50 A and time t = 1 minute. Question charge passing through the wire ?

Q: 9. The resistivity is measured in O ohm/m ohm/m^2 ohm-m

A: Resistivity, electrical resistance of a conductor of unit cross-sectional area and unit length. A…

Q: The resistance of an object is defined as (voltage)(current). (voltage)/ (current). (length)/…

A: According to the ohm's law V = IR  Here, V = Voltage, I= current And R = Resistance

Q: 2. Complete the table below by identifying the effects on resistance and effects on current flow of…

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Q: 1. In Ohm’s Law, if the resistance increases with constant voltage, then the current is 2.Mesh…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 2. Three 9-V batteries are connected in parallel to provide current to a 3 KN load resistor.…

A: Dear student According to Kirchhoff current law the current leaving at any junction is equal to…

Q: 2. What is the resistivity of the wire?

A:

Q: Determine the value of current ?

A: Given data:  Resistance (R) = 5 Ω Voltage (V) = 10 V Required: Current (I)

Q: 4- A linear resistance has a value of ohms. 5- The of a material is the mass per unit volume.

A: Required : 4. A linear resistance has a       .....        value of ohms.  5. The            ....…

Q: 5. What is the main purpose of an electroscope?

A: Note:  According to guidelines , we can answer one question at a time

Q: 3.The diagram at the right depicts a conducting wire. Two cross-sectional areas are located 50 cm…

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Q: _1. If wire has 1.25 x 1016 electrons flowing through its cross-section in one second, what is the…

A: Given that,number of electron flowing per second, N=1.25×1016charge of 1 electron, q= 1.6×10-19…

Q: 11. Complete the table below by identifying the effects on resistance and effects on current flow of…

A:

Q: 19 - Which material's resistivity increases smoothly with increasing temperature?

A: Resistivity of a material is defined as the ability of the material to oppose the current flowing…

Q: ☐☐ 41. An airplane deicer melts 0.10 kg of ice from the wings of an airplane each minute. The deicer…

A:

Q: 2. Determine the Rlee and the individual voltage.

A: The equivalent resistance in the series combination R = R'+ R''  The equivalent resistance in the…

Q: 17.3   Birds resting on high-voltage power lines are a common sight. The copper wire on which a bird…

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Q: + :2Ω 12 V I 13 15 V3 4Ω

A:

Q: 16-In Europe, 220 V is used instead of 120 V in America. 60 W European bulb in America If used, what…

A: VE = 220 V VA = 120 V PE = 60 W PA = ?

Q: what relation exist between a)voltage and current if resistance is kept constant b) voltage and…

A:

Q: (1) Current density describes how charges flow through an extended object such as a wire. (II)…

A: Current density is the amount of charge flowing per unit time through unit cross sectional area  of…

Q: 3- Why does the resistivity of superconductors become zero?

A: given statement - " why the resistivity of superconductors become zero" ?

Q: When a potential difference of 12 V is applied to a given wire, it conducts 0.45 A of current. What…

A: Potential difference, ∆V =12 V Current flown, I = 0.45 A Let resistance of the wire be R.

Q: 1. The large window air conditioner in Anita Breeze's room draws 11 amps of current. The unit runs…

A: According to the company policy, only first question will be answered here. Please post the rest…

Q: 12. Give two examples of electrical devices that are based on transistors.

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Q: What is difference between resistance and resistivity?

A: The resistance of the property of an object which opposes the flow of electrons or the current…

Q: Most wires that are good conductors are wrapped in an insulator to keep people from being shocked…

A: Wires that can pass electricity are known as conductors.

Q: 1. A flashlight bulb carries a current of 0.38 A for 98 s. How much charge flows through the bulb in…

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

Q: 3. An operating lamp draws a current of 0.50 ampere. How much charge passes through the lamp in 10…

A: 3- Given: Current through operating lamp, i=0.50 A Time, t=10 s To determine charge passes through…

Q: _______________1. Is the law that governs the relationship among current, voltage, and resistance in…

A: Answers:- 1. ohm's law is the law that governs the relationship among current, voltage, and…

Q: 4. A conductor is? a. material that current can pass through c. material that current cannot pass…

A: Introduction: A conductor is a material that allows the flowing of charge from one end to another…

Q: – 6 V + | I 5 N 10 V

A: R1 = 2 ohm V1 = 6 volts R2 = 5 ohm V2 = 10 volts

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.