A charge of Q = 1.1 C passes through a wire every t = 1.5 s. a.Input an expression for the current, I, in the wire. b.  What is the current in amperes? c. What is the current, in milliamps?

Q: 9. Two resistors, R1 = 15 Q and R2 = 30 Q are connected parallel to a potential difference of 60 V.…

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Q: 1. A hollow cylinder of length L, inner radius R1 , and radius R3 is filled with two different…

A: (a)Formula for the resistance is:

Q: 1. A battery labeled 12 V supplies 1.90 A of current. What is its resistance? 2. How much current is…

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Q: Q1.Nichrome wire has resistivity p=1.5*10-6 (Q.m) calculate the following a. The resistance per unit…

A: Resistivity of Nichrome wire is p = 1.5 x 10-6 ohm-m Radius of the wire is r = 0.321 mm Potential…

Q: A cell with internal resistance of 1.5 Ω is connected in series with 5 Ω and 2.5 Ω. The voltage…

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Q: Use "E" as the symbol for Voltage. R, R, If I = 0.75 A, R1 = 6 Q, and R2 = 15 Q, what is.. a. the…

A: Given: Current through the circuit is I=0.75 A Resitance of resistor 1 is R1=6 Ω Resistance of…

Q: We have a copper wire taking a 1.67 A current to a cellphone and the wire has a diameter of 1.02 mm.…

A: Given data Current through the wire ,I=1.67 A Diameter of the wire, d=1.02 mm=1.02×10-3 m

Q: a) Answer all statement as shown in Table Q1(a) Table Q1(a) No Statement True or False i.…

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Q: 9. Two resistors, R1 = 15 Q and R2 = 30 Q are connected parallel to a potential difference of 60 V.…

A: Given that,Resistance, R1=15QR2=30QVoltage, V=60 V

Q: A toaster draws a current of 9.0 A (Amperes) when it is connected to a 110V A.C. voltage source and…

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Q: A 40-W light bulb operates on an effective ac voltage of 110 V. a. What is the effective current…

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Q: A conducting wire with circular cross-sectional area A and length L has resistance R. If the radius…

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Q: Solve a. RT total resistance b. IT total current c. PT total power

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Q: 15.

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Q: A conducting rod with a circular cross-section (this rod is a cylinder) has a radius of 10 mm and is…

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Q: copper wire carries a current of 8.12 mA a. Find the number of electrons that flow past a given…

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Q: A battery produces a current in a wire. As the current continues, which of the following quantities…

A: The charge flows from the positive terminal to the negative terminal of the battery when the circuit…

Q: The total amount of charge that has entered a wire at time t is Q(t) = (27 C) (1. - e-t/2.1), with t…

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Q: A 24 volt battery is connected to a light bulb that has a resistance of 30Ω. a. How much current…

A: Given data:  Voltage (V) = 24 V Resistance (R) = 30 Ω Charge (Q) = 100 C Required: Current (I) and…

Q: a. What is the resistance of a 1500 W (120 V) hair dryer?b. What is the current in the hair dryer…

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Q: An electric flat iron draws a current of 15 A when connected to a 110 V line. a. Assuming that the…

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Q: A current of 4.50 A flows in a conductor for 7.50 s. How many electrons pass a given point in the…

A: Given that:-Current, I=4.50 ATime, t=7.50 secWe know that:-The current is rate of flow of charge,…

Q: 1. A. Discuss what electric current is with respect to how you understand drift velocity of moving…

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Q: A current of 12 A flows through an electric heater operating on 120 V. a. What is the heater’s…

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Q: A current from a 12 V battery passes through a 10.0 m long, 0.25 mm diameter copper wire. a. What is…

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Q: A 70 W electric blanket runs at 18 V.a. What is the resistance of the wire in the blanket?b. How…

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Q: As shown, a single cell in a sample of tissue can be modeled by a circuit consisting of two…

A: After a long time, the capacitor gets fully charged. Thus, no current will flow from the capacitor…

Q: In the circuit pictured, the resistors have values of R1 = 150 Ω, R2 = 68 Ω, and R3 = 160 Ω, and the…

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Q: For elements that are in series with each other, which of the following statements is not only…

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Q: 3. A 100 W incandescent light bulb operates at a potential difference of 85 V. A. What is the…

A: Power rating of the incandescent light bulb,

Q: appliance used up 33.0 kJ of energy for 60 seconds at a 220 V potential difference. a. How much…

A: Given Energy used E = 33 kJ  = 33 × 103  J Time taken t = 60 sec Voltage V = 220 V

Q: 2. If the current in 10µF capacitor is i(t) = 5te3t mA; A. Plot a graph of the current vs time. B.…

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Q: B. A single 100 Q resistor is in series with a 50 V battery. What is the current in the circuit and…

A: Given,  Resistance of the resistor, R = 100ohms Voltage , V = 50V

Q: A resistor has four color bands: brown, orange, yellow, and Gold. What is its resistance? b.  A 60…

A: Here,  Brown → 1Orange →3Yellow → 105Gold → ±5% Therefore, the resistance is 130,000±5% ohm

Q: e. An electric hot plate has a power output of 1.34 kW when connected to a 94.63 V source. What is…

A: As we know, P=V.I Where P=power =1.34kW V= voltage = 94.63v

Q: Suppose you have several Ohmic wires made from the same material with different lengths L, different…

A: An ohmic wire is a wire which follows ohm's law, given as V=IRV is the emf across the wireI is…

Q: ent Ohm's law?

A: The current passes through a wire between the two points is directly proportional to the voltage…

Q: An electric flat iron draws a current of 15 A when connected to a 110 V line.…

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Q: A 1000 μF capacitor is charged at a constant current of 1 mA. The final voltage across the capacitor…

A: Given data, Capacitance C=1000 μF. Constant current i=1 mA. Voltage across capacitor V=100 V.

Q: A single 12 Volt battery is connected to a single 40 Ohm resistor. a. how much current is flowing…

A: Given,  V = 12 volt R = 40 ohm  a) As we know I = V/R     = 12/40     = 0.3 A

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.