. A battery of emf 10 V and internal resistance 3 № is connected to a resistor. If the current in the circuit is 0.5 A, what is the resistance of the resistor? What is the terminal voltage of the battery when the circuit is closed?

Q: (a) Three trains cars are connected and moving at a speed vo. A fourth car with speed 2vo catches…

A: Note:-  “Since you have asked multiple questions, we will solve the first question for you. If you…

Q: In the circuit shown in the figure, VA = VB = 10.0 V and R₁ = R₂ = R3 = R4 = R5 = 100.0 22. Current…

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Q: 13. The frequency of a photon having energy 100 eV is (Take h = 6.62 × 10-³4 J s; 1 eV = 1.6 × 10-¹⁹…

A: The question is The answer is  The explanation is as follows

Q: 100 There is a system with four capacitors connected, as shown in Figure P25.10. (a) Calculate the…

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Q: At one instant an electron is moving in the positive x direction along the x-axis in a region where…

A: we know that If a charge moves into a magnetic field with direction perpendicular to the field, it…

Q: 8] A length of copper wire has resistance of 0.172 S and a cross sectional area of 7.85 × 10–5 m²…

A: Length will be given as  L = RA/rho =0.172 x 7.85 x 10-5 /1.72x 10-8 = 785 m

Q: A block of mass M = 5.90 kg, at rest on a horizontal frictionless table, is attached to a rigid…

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Q: Problem 4 Impulse An object of mass m is at rest at t = 0 and undergoes the force shown (in the x…

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Q: There is a rule of thumb for estimating how far away a thunderstorm is. After you see a flash of…

A: From the figure we can see that the person stands 1 mile( 1.6×10³ m) away from where lightning…

Q: The edges of a shoebox are measured to be 11.3 cm, 19.4 cm, and 29 cm.

A: Given: length =11.3 cm  Width= 19.4 cm Height = 29 cm

Q: While a car is stopped at a traffic light in a storm, raindrops strike the roof of the car. The area…

A: area of the roof (A) = 5 m2mass of each rain drop (m) = 3.7×10-4 kg initial velocity (v) = 2.5…

Q: (d) What is its speed at t = 1.1 s and t = 2.9 s? |v(t = 1.1 s)| = m S m |v(t=2.9 s)|=| (e) What is…

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Q: ASK YOUR TEA Assume the magnitude of the electric field on each face of the cube of edge L 1.06 m in…

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Q: O Set up the free-body diagram and the equations for Newton's 2nd law for each object along each…

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Q: What is the x-component of the velocity of the third piece?  What is the y-component of the…

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Q: he separation distance between the two plates of a parallel plate capacitor is 2.17 cm. An electron…

A: GivenDistance of seperation between the plates, d=2.17 cm=2.17×10-2 mKinetic energy of electron,…

Q: 13. The frequency of a photon having energy 100 eV is (Take h = 6.62 × 10-³4 J s; 1 eV = 1.6 × 10-¹⁹…

A: Given data: Energy of photon, E=100 eV Value of Planck's constant, h=6.62×10-34 J s 1 eV=1.6×10-19…

Q: In preparing tea, 290 g of boiling water is poured into a 180 g china cup at 20°C. What is the final…

A: Given data, mass of water mw=290 g mass of pot mp=180 g specific heat of the water cw=1 cal/g.°C…

Q: A 36 g particle undergoes SHM with an amplitude of 2.1 mm, a maximum acceleration of magnitude 5.5 x…

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Q: A bicyclist starting at rest produces a constant angular acceleration of 1.30 rad/s2 for wheels that…

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Q: Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy.…

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Q: A parallel-plate capacitor made up of circular plates with radii of 10 cm and separation of 0.25 mm…

A: Given that Parallel plates Capacitor made up of circular plates with radii = 10 cm =0.1 m   The…

Q: Q4. A small object slides along a track from one level to another level after passing through a…

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Q: Prelab Questions 1. A box of mass m is dragged across a floor by a 50.0 N force, parallel to the…

A: Given data:  Force (F) = 50.0 N Acceleration (a) = 3.00 m/s2 The floor is frictionless Required:…

Q: A 5-kg projectile is fired over level ground with a velocity of 200 m/s at an angle of 25°above the…

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Q: builder wants to install wall-to-wall carpeting in a living room of length 8.81 m and width 6.3 m.…

A: Given: Length of the room = 8.81 m Breadth of the room = 6.3 m

Q: A transformer has 800 turns on the primary coil and 24,000 turns on the secondary. If the input…

A: Given data:  Number of turns on the primary coil (N1) = 800 Number of turns on the primary coil (N2)…

Q: In the figure, a stick of length L = 2.0 m oscillates as a physical pendulum. (a) What value of…

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Q: A bacteria culture starts with 400 bacteria and grows at a rate proportional to its size. After 5…

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Q: [Q6] Which of the following are true about the circuit loop rules, otherwise known as Kirchoff's…

A: Kirchoff's junction rule states that total current entering a junction is equal to total current…

Q: 2) (Treat as a "forces" problem) Lobster would so much like to experience "flying through the air",…

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Q: At the instant shown, cars A and B (angle between them is 60°) are traveling at speeds of 65 mi/h…

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Q: There is a clever kitchen gadget for drying lettuce leaves after you wash them. It consists of a…

A: radius (r) = 12.2 cm = 0.122 m Angular velocity (ω) = 2.45 rev/sec

Q: 3) A baseball is struck by a bat and 3 s later it is caught 30 m away. a) If the baseball was 1 m…

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Q: Rutherford fired a beam of alpha particles (helium nuclei) at a thin sheet of gold. An alpha…

A: m1=mass of the alpha particle=6.7×10-27 kg m2=Mass of the gold nucleus Before collision u1x=initial…

Q: Two point charges, one of -1.5 μC and the other of +3.7 μC, are placed at the points (-2.5 m, -1.5…

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Q: autistic children

A: Autism spectrum disorder (ASD) is a developmental disability caused by differences in the brain.…

Q: Figure 7.16 The four forces are the same strength, but they have different effects on the swinging…

A: we know             Tendency of a force to cause rotational motion is called torque. Now let r be…

Q: - Set up the free-body diagram and the equations for Newton's 2nd law for each object along each…

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Q: 22 (26). The voltage applied to the air-filled parallel plate capacitor is 85.0 V. As shown QIC in…

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Q: why does the specific heat of water still 4.184 from the unit kj/kg K to j/kg K?

A: The specific heat capacity of water is the heat required to raise the temperature of a unit mass of…

Q: An insect 1.5 mm tall is placed 1.0 mm beyond the focal point of the objective lens of a compound…

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Q: 3. Stokes' law describes the drag force on a small sphere moving through a viscous fluid, and is…

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Q: 8. A delivery person in an elevator is holding a package by an elastic cord. a. What happens to the…

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Q: ▼ Part A Calculate the ratio of the resistance of 15.0 m of aluminum wire 2.1 mm in diameter, to…

A: Given, Aluminium wire  LAl= 15m  DAl= 2.1 mm   ρAl= 2.65×10-8 Ω-m Copper wire :  Lc= 22m  Dc=1.6 mm…

Q: Which statement is most nearly the same as Newton's third law? A) If the net force acting on an…

A: According to question we need to find that which option most nearly same as Newton third law .

Q: Consider a closed triangular box resting within a horizontal electric field of magnitude E = 7.76 ×…

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Q: A pendulum's angular position is given by ?= 0.0340 cos (?t), where ? is in radians and ? = 6.23…

A: Given, Angular position of a pendulum is  θ= 0.340cosωt  ω= 6.23 rad /sec

Q: • • At the local grocery store, you push a 14.5-kg shopping cart. You stop for a moment to add a bag…

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Q: A 180-kg load is hung on a wire of length of 4.50 m, cross-sectional area 2.000 x 10-5 m2, and…

A: Given data:  Mass (m) = 180 kg Length (L) = 4.50 m Cross sectional area (A) = 2.000×10-5 m2 Young…

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.