How do you derive Equation 4 from Equations 1 and 3? Equation 1 is Current, I= emf/(R+r) and Equation 3 is power, P= IV= I^2R . Equation 4 is Making use of Eq. (1) in Eq. (3), one can show that power, P, supplied by the battery to the resistive load, R, can be written as: P=emf^2(R/(R+r)^2

Q: Find the current I through the circuit. I=    (mA). Find the voltage across each resistor. Give your…

A: Applying kirchoffs loop rule, 12-(10+20+10+10+10)*10^3 * I -24 =0   I=-12(60×103)=-2×10-4A=0.2mA

Q: Consider the three resistors R1 = 22 Ω, R2 = 54 Ω, and R3 = 83 Ω in the configuration shown in the…

A: Given: The resistances of the three resistors:  R1 = 22 Ω, R2 = 54 Ω and R3 = 83 Ω. The potential…

Q: In the circuit pictured, the resistors have values of R1 = 165 Ω, R2 = 88 Ω, and R3 = 175 Ω, and the…

A: Current flow in different branches are shown in the figure .Apply kirchoff current law in point b we…

Q: In this circuit, R1 = 12 N, R2 = 6 N, and R3 = 5 N. The two batteries produce potentials of ɛ1 = 10…

A: Given: R1 = 12 Ω R2 = 6 Ω R3 = 5 Ω Ε1 = 10 V E2 = 25 V

Q: In the circuit diagram R1 = 5R and R2 = 15R, where R = 24 Ω. The power dissipated in resistor 2 is P…

A: Current in the circuit P2=I2R2I=P2R2=3.7 W15×24 Ω=0.1013 A

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Q: Problem 7: A TV works properly under the voltage of AV = 210 V with power P= 1500 W. Part (a)…

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Q: Current of I=3.1 A passes through the circuit shown, where R =75 omega. A) in terms R, I,, and…

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Q: the emf source E = 2,9 V, of the curcuit shown in the figure has negligible internal resistance.The…

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Q: The resistor R in the figure below dissipates 17 W of power. Determine the value of R. (Assume ΔV =…

A: Power = I2 R

Q: 10 Q 30 N

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Q: Give the symbolic expression for the emf E using KVL for the circuit with S1 closed and S2 open.…

A: Given data: The emf of the circuit is E=21 V The resistances are R1=35 kΩ and R2=5.5 kΩ  The…

Q: The current in a simple single resistor circuit is I1 = 5.25 A. A second resistor, with resistance…

A: Let the first resistor = R1R2 = 96 ohm I1 = 5.25 A I2 = 2.3 ALet the potential difference provided…

Q: A capacitor is being charged with 9.6 V of the voltage supply in a RC circuit shown below. At t = 0…

A: According to the Bartleby guidelines, only three questions can be solved. Given data The potential…

Q: For the circuit shown in Fig.1 below, C1 = 5μF, C2 = 4μF, C3 = 6μF and ∆V = 65V. Find: (a) the…

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Q: The current i, in the circuit in Figure below 2 A. a) Find i. b) Find the power dissipated in each…

A: let the resistance R0 = 60 Ω   R1=  70 Ω   R2 = 35 Ω   R3= 25 Ω R4 =5 Ω the corresponding current…

Q: Current flows out of the positive terminal of a 13 V battery and into a 35 N resistor. The current…

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Q: Consider the circuit shown below. If the voltage source is set to 10 V, R1 = 800 and R3 = 800.…

A: Voltage source V=10 V Resistor are R1 = 800 ohm

Q: In (Figure 1), the battery has negligible internal resistance and EMF = 44.0 V. R1 = R2 = 3.40 Ω and…

A: Given Data: The EMF is V=44 Volt The resistances are R1 = R2 = 3.40 Ω and R4 = 3.70 Ω

Q: The diagram represents an electric circuit consisting of a 12-volt battery, a 3.0-ohm resistor, R1,…

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Q: Draw a circuit diagram with 3 resistors (R1= 5 ohms, R2= 34 ohms, R3= 6 ohms) connected in a…

A: Given :            Resistor R1 = 5Ω                R2 = 34 Ω                R3 = 6 Ω…

Q: An ideal emf e = 12 V is wired into a circuit with resistors R1 = 4.0 N and R2 = 8.0 N, as %3D shown…

A: According to Ohm's law, V = I×R where, V = Voltage  I = Current R = Resistance Also, equivalent…

Q: Part (a) In terms of R, I, and numeric values, write an expression for the voltage of the source, V.…

A: Given, Current I=2.3 A R=95 ohm Part a Ohm's law states that current through a conductor between two…

Q: Problem 3: A current of I= 1.5 A flows through a resistor. The potential difference across the…

A: Answer Given data  Current I = 1.5 A Potential difference ∆V = 5.9 V We have to find the resistance.…

Q: In the circuit pictured within the attached image, the resistors have values of R1 = 165 Ω, R2 = 51…

A: The current goes through the battery is I= 2.443094663 amps.The current through resistor R2 is I2=…

Q: Consider a circuit shown in the figure. Ignore the internal resistances of the batteries. ℰ1 = 34 V…

A: Since you have posted multiple question, we have solved the first three parts only. Please resubmit…

Q: Consider the circuit shown in the figure below. (Let R, = 3.00 N, R, = 3.00 N, and Ɛ = 9.00 V.) 10.0…

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Q: The diagram below shows a circuit where R1=4 Ω, R2=6 Ω, R3=5 Ω, V1=6 Volts, V2=10 Volts, and V3=7…

A: Given, R1 = 4 ΩR2 = 6 ΩR3 = 5ΩV1 = 6 VV2 = 7 V

Q: RMU recently added a solar generator to its power grid which is already receiving power supply from…

A: Let R1, R2, R3, and R4 denote the resistances, RL denotes the load resistance, V denotes the grid…

Q: Consider the circuit below. The battery has an open-circuit voltage of ɛ = 30 V and an internal…

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Q: A 12-volt battery of internal resistance r of 0.05 ohm is to be recharged by a 50-volt dc source at…

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Q: The capacitor in an RC circuit (R= 100 2. C= 50 uF ) is initially uncharged. Find the charge on the…

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Q: I need a labled schematic on paper of the circuit showing + and - terminals of the battery, the…

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Q: Let R1 = 2.40 Ω, R2 = 3.30 Ω, and R3 = 4.20 Ω. I3 is the current through R3 = 4.20 Ω and the 3 =…

A: R1=2.40 ΩR2=3.30 ΩR3=4.20 Ω

Q: current of I = 4.6 A passes through the circuit shown, where R = 21 Ω. a) In terms of R, I, and…

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Q: Two batteries with emf &, and &2, with internal resistances ₁ and ₂ respectively, are connected as…

A: a) Apply Kirchoff's voltage law in the circuit and substitute the corresponding values to calculate…

Q: Problem 11:   A circuit with a resistance R = 157 Ω is connected to a battery with potential…

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Q: In the circuit pictured, the resistors have values of R1 = 125 Ω, R2 = 120 Ω, and R3 = 148 Ω, and…

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Q: Two resistances are connected in series to a voltage source. The voltage source (∆Vtot) is a 48-V…

A: Value of R1=6.4ohm Value of R2=3.9ohm Voltage applied=48V

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.