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: 6. Find the load voltage V₁, the load current /L. and the current supplied by each cell in the…

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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: 15.Sketch I-V graphs for the following cases and identify which graph corresponds to which type of…

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Q: consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.5…

A: Given data: Battery Voltage (V) = 6 V Wire Diameter (D) = 0.5 mm = 0.5×10-3 m Power (P) = 20 W…

Q: 13- At 20 °C, a copper wire has a diameter of 4 mm, a length of 20m, a resistivity of 1.7×10-8 2m…

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Q: 1. Wires A and B are made of the same material and have the same length. Howeve the diameter of wire…

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Q: 1. A potential difference of 38 V is applied to the two resistors of 5.3 Q and 4.9N connected in…

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Q: etermine the equivalent resistance between terminals a and b.

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Q: A piece of iron rebar on a construction site measures 2 cm in diameter and is 3m long. What…

A: The resistance can be found using R=LσA Where, σ is electrical conductivity of the material,L is…

Q: 4. Wire A and B are made of the same material and have the same length. However, the diameter of…

A: Given : da = 3 db  Ra = 12 ohm

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: 7-An emf source with = 100 V, a resistor with resistance R = 90.0 S2, and a capacitor with…

A: For an RC series circuit  Vc(t) = Vs*(1-e-tRC)           ....(1)and ic(t) = VsRe-tRC…

Q: 3. The resistance of a copper wire with circular cross section of radius a and length L is R. If we…

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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 is used to charge a previously uncharged capacitor of Capacitance 301 micro farad. The…

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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: 1. A circuit containing six resistors is connected to a battery with emf equal to 24 V and zero…

A: (a) Here R5 and R6 are on parallel1R'=1R5+1R6R'=R5R6R5+R6=5×205+20=4 ΩNow R' and R2 are in…

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

A: (i) Given:

Q: Butane (MW=58), is a type of hydrocarbon commonly used as fuel for portable stoves. The gas is held…

A: Kinetic Theory of Gases: It is the study of microscopic behavior of molecules and the interactions…

Q: Some wire of cross-sectional area 1mm? has a resistance of 20a. Determine (a) the resistance of a…

A: Cross sectional A1 = 10-6 m2  Resistance R1 = 20 Ω

Q: R2 R1 R3 Figure 11 1. When a single resistor is connected to a battery, the current through that…

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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: 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: 30 40 50 60

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Q: A resistor is placed in a circuit with an adjustable voltage source. The voltage across and the…

A: The slope of a voltage (V)-current (A) graph represents the resistance of the resistor.

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: These currents are given, 2A, 3A and 5A as shown in the figure. Find the current in 3Ω resistor, the…

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

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Q: 8. A simple circuit is composed of an ideal 100 v battery in series with three resistors (R1 = 100,…

A: See below

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

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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: 5. How does the resistance of two copper wires compare if wire X is twice as long as wire Y and has…

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Q: 7. Lightning discharges and lightning occur when charges are separated at different heights in the…

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Q: . The maximum power consumption of an air fryer is 1500 W. If it is connected to a 220-V line, (a)…

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Q: 59 : A potentiometer wire has a length of 4 m and a resistance of 10 Q. The wire is connected to a…

A: To Find: 1) Potential drop per unit length 2) Balancing length Given Data: L=4 m,R=10 ΩE=4 Vr=2…