8: The current flowing through an external resistance of 5 ohm is 1 ampere when it is connected to the terminals of a cell. This current reduces to 0.6 ampere when the external resistance is 10 ohm. Find the internal resistance of a cell using Kirchhof's law.

Q: Two resistors connected in series have an equivalent resistance of 813.6 Q. When they are connected…

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Q: cell has an internal resistance of 0.50 7. It has a terminal voltage of 1. 4 V when connected to a…

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Q: Cells provide electromotive force (emf) to a circuit but can have internal resistance themselves.…

A: (a) Defiination of emf :- Electromotive Force (emf)is the amount of energy delivered per unit…

Q: A battery is to consist of 20 identical cells. The emf of each cell is 1.5 V and the internal…

A: When the cells are in series, the net emf is the sum of the individual ones.  The equivalent…

Q: 4. What is the equivalent resistance of the combination of resistors shown in the figure, if each…

A: When resistors are connected in series, equivalent resistance isWhen resistors are connected in…

Q: Qs # 1. Calculate the current in the circuit and show the sum of all voltage changes around the…

A: We need to determine the current in circuit and validate the Kirchhoff's voltage law.

Q: V V We are testing a car battery to measure its internal resistance. We measure a voltage of 11.9…

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Q: A circuit contains a 10.0 ohm resistor, a 12.0 ohm resistor, and a 6.0 ohm resistor. If they're…

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Q: When five resistors are connected in series, they give an equivalent resistance of 82 ohms. Four…

A: Given data:  Five resistors are connected in series Req = 82 Ω R1 = 13 Ω, R2 = 7 Ω, R3 = 28 Ω And R4…

Q: 17. Examine the following circuit diagram showing four resistors connected to a battery. R₁=100 www…

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Q: A certain wire has a resistance of 76 N. What is the resistance of a second wire, made of the same…

A: The given data are: R1=76 ΩL2=L4D2=D3

Q: Question #2. Using Ohm's law, find the resistance R in the figure below I (A) 0.3 0.2 0.1 4 V (V) 2.

A: The mathematical expression for resistance according to ohm's law is given as, R=VI Here, V is the…

Q: Three resistors are in parallel. Their combined resistance is 5.0 ohms. One has a resistance of 10…

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Q: A battery delivers a current of 2 A when connected to two 8.0 Ω resistors in parallel. When one or…

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Q: 14. Calculate the ratio of voltage across to the current flowing through for the battery. bat=[8V I…

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Q: For the circuits shownin Figure below, the resistors represent the internal resistane batteries.…

A: (i) Given:

Q: A 20 V battery, a 8 Ω resistor and a 16 Ω resistor are connected in parallel. The battery has an…

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Q: 9 If the resistors given in the table are connected in parallel, what is the value in Cell A?…

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Q: The Graph below depicts the 1.5 voltage across the cell (or equally across the variable resistor) as…

A: (a) From graph emf of the cell is E=1.5V(b) From graph at V=0.90V ,…

Q: ki-15Ω h=10Ω 10Ω

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Q: Determine the length of a copper wire that has a area as 7.2 mm². The resistance cross-sectional and…

A: Given data, Cross area is given as, A=7.2 mm2 = 7.2×10-4 m2. Resistance of R=13 Ω. Resistivity of…

Q: A 56-Ω resistor in a circuit has a voltage difference of 8 V across its leads. Calculate the current…

A: Given: The potential difference is 8 V. The resistance of the circuit is 56 Ohm.

Q: 4. What will happen to current passing through a conductor if potential difference across it is…

A: 3. The wrongly connected equipment in above diagram is ammeter.The correct combination will be…

Q: 4- The resistance between A and B are in series with the resistance B and D. *

A: Answer Two resistors on the same path are in series. There must be nothing else in between. If the…

Q: An RC Circuit consists of a resistor and a capacitor. If the capacitor were charged to 10 volts and…

A: Initially the capacitor was fully charged. Then it starts discharging.VC=V0e-tRCV0=10 VC=10×10-6…

Q: Material= Lead Resistivity (Ω.m) = 22 x 10- 8 a) Calculate the conductivity of your material.…

A: *We'll answer only the first three sub-parts since the sub-parts to be answered were not specified.…

Q: Four resistors - 2-Ohms, 5-Ohms, 12-Ohms and 15-Ohms - are placed in series with a 12-Volt battery.…

A: The equivalent resistance here can be obtained as Since the resistors are connected in series, the…

Q: Given that the overall resistance of the circuit is 3ohms, What is the value of R1 (in ohms) if R2…

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Q: You are given a spotlight which takes 2 amperes of current designed to work off a 6-volt battery. If…

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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: 1.Consider the circuit shown below. (a) Find the voltage across each resistor. (b)What is the power…

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Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 21.10. When they are…

A: Equivalent resistance in series Rs = 21.1 Ω Equivalent resistance in parallel Rp = 4.23 Ω

Q: Two resistors connected in series have an equivalent resistance of 622 Ω. When they are connected in…

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Q: Consider the circuit below. (a) Find the equivalent resistance of the circuit and the current out of…

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Q: 17. The diagram shows two circuits for flashlights. Each flashlight has batteries totaling six…

A: Given: For flashlight 1- voltage V= 6 V Resistance, R=3 Ω   For flashlight 2-  voltage V= 6…

Q: When the two poles of a battery are connected to a resistance of 2.5 ohms, the potential difference…

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Q: 5 cells are connected in series to form a battery. A light bulb with 4 ohms is connected and the…

A: Solution:-

Q: A 11-Ω resistor in a circuit has a voltage difference of 4 V across its leads. What is the current…

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