3. How resistance and resistivity get effected by temperature. If there is iron wire at room temperature of 20 oC and then you increased its temperature to 50 degrees Celsius, what would be its change in resistance and resistivity if its original resistance is 20 ohm and resistivity is 10 ohm m. The temperature coefficient of iron is 5.0*10^-3 per oC.

Q: How does Ohm's law help us? 3-5 sentences

A: We have to write How does Ohm's law help us.

Q: Find current : Voltage=12 Volt Resistance=3 Ohms

A: Given data : Voltage=V Resistance=R   Required : Current

Q: wo vectors A = 4ax + 3ay  and B = ax + 2ay + 2az , find

A:

Q: What is the efficiency of an ideal heat engine that operates on a Carnot cycle between 70 °F and…

A: Given: Temperature, T1=70 °F  Temperature, T2= 1000 °F To determine the efficiency of an ideal heat…

Q: 30. Ganyu used her charged attack to shoot an arrow hitting a hilichurl tower a certain distance…

A:

Q: Based on the figure below, calculate the largest bearing stress in MPa between the pin and the…

A:

Q: A 8-g block slides with a velocity of 18 cm/s on a smooth level surface and makes a head-on…

A: Given Information:- Mass of the first block is m1=8 g Mass of the second block is m2=26 g Initial…

Q: An 54.0-kg man eats a banana of energy content 449 kJ (107 kcal). If all of the energy from the…

A: Given data:  Mass (m) = 54.0 kg Kinetic Energy (KE) = 449 kJ = 449000 J Initial velocity (Vi) = 0…

Q: If the total current flowing through the point B is 1.8 A, what is the total voltage in the circuit?…

A: The electric circuit is shown below.

Q: A 7951 - kg truck traveling at 7.33 m/s east collides with a 2262 - kg car moving at 17.2 m/s in a…

A:

Q: A beam of light is diffracted by a slit of width 0.50 mm. The diffraction pattern forms on a wall…

A: Given Information:- Slit width is d=0.50 mm=0.50 mm×1m103 mm=5.0×10-4 m Distance between the slit…

Q: A 6.00-kg ornament is held at rest by two light wires that form 30° angles with the vertical, as…

A: Given data: Mass (m) = 6.00 kg Force (F) = 410 N Angle (θ) = 30°,with the vertical  Required:…

Q: 11. A 0.200 g bee flies at constant speed along a horizontal circular path with a diameter of 84.0…

A: Given, Mass=0.200g=2*10-4kg Time=1min=60sec Diameter=84cm=0.84m

Q: A 12-V battery, a 12-ohm resistor and a 4-ohm resistor are connected. The current in the 12-ohm…

A: Given : Voltage, V= 12 V  Resistance, R1= 12 ohm and R2= 4 ohm  Find : We need to find current in…

Q: Answer the following questions based in Pendulum Experiment: At what point is the PE the greatest?…

A:

Q: 6. Find the dot product of two vectors Ä " B. Use all the information presented by the graph. (A)8.6…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Trachecktory. Two cannonballs, aptly named a and B, were launched on level ground. a was launched…

A:

Q: What is the potential difference between two point in an electric field if it takes 500J of energy…

A: Given data:  Potential Energy (U) = 500 J Charge (q) = 2.5 C Required: The potential difference (ΔV)…

Q: To what temperature will 9400 J of heat raise 2.5 kg of water that is initially at 11.0 °C? The…

A: Given:  mass of water (m) = 2.5 Kg             specific heat of water (c) = 4186 J/Kg °C…

Q: What force must be exerted on the master cylinder of a hydraulic lift to support the weight of a…

A:

Q: 1. Calculate the equivalent capacitance of the system. Each capacitor in the circuit has a value of…

A: Here we have to find the equivalent capacitance

Q: . Two sports car collided during a race, One car weighs 85kg and the one weighs 92kg. Before…

A:

Q: 22. A dog, located at the origin, sees a running cat at rc,i= 10 (m) î + 15 (m) ĵ with a constant…

A:

Q: 1. Consider the figure below. If Hs = 1/(2+V3 ) between the surfaces, what is the smallest possible…

A: Draw the free-body diagram of the block.

Q: A typical school assembly lasts about 1 micro century! This time is closest to A) 38 minutes B) 46…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Push mo yan teh. A 3.00 [kg] block is pushed by a 30.0 (N] force against a rough wall with…

A:

Q: Find desity g object hamry valume 4m man y000 kJ

A: Given data : Mass of object=m Volume of object=V   To find : Density of object

Q: 1. Calculate the equivalent capacitance of the system. Each capacitor in the circuit has a value of…

A: Given : Each Capacitor has value of 6 micro farad.  Required : Equivalent Capacitance of the system

Q: Find the value of distance covered by car in 6 s if car is moving with speed of 25 m/s

A: Given : time, t = 6 s  Speed , v = 25 m/s  Find : Value of distance covered

Q: If a rock and a feather are dropped in a 98-meter-long tube in which there is a vacuum, which one…

A: Given statement  If a rock and a feather are dropped in a 98-meter-long tube in which there is a…

Q: Given the figure, determine the Vernier caliper measurement. Express your answer in centimeter. The…

A: Given data:  Main scale reading (MSR) = 3.9 cm Least count (LC) = 0.05 mm Vernier scale reading…

Q: 5. (a) What would be capacitance of a parallel plate capacitor if it has charge of 20 μC and voltage…

A:

Q: A household installed heat in solar panels with 2.5 kw h has an efficiency of 85.5% what is the…

A:

Q: If the sum of all torques on an object in equilibrium is zero about a certain point, then it is A)…

A: Since you have posted a question with multiple sub-parts, as per our guidelines we will solve first…

Q: (c) 0, between A and B AB

A:

Q: lang hulogan. A car is moving at a constant speed of 5.00 [m/s]. The driver sees the ge of the cliff…

A: Given Initial velocity u= 5 m/s Final velocity v= 0 Distance covered S= 20 m

Q: Projectile. A cannonball is catapulted toward a castle. The cannonball’s velocity when it leaves the…

A:

Q: 29. The graph shows the acceleration of an object across time. Which of the following graphs below…

A: The acceleration versus time graph is given for an object is motion from the graph , the…

Q: Two charges in air are 30 cm apart. The first charge is +50nC and the second charge is –80 nC. What…

A:

Q: A loader lifts a 20kg load to a height of 3m in 5 seconds. How much power was demonstrated

A: Given data:  Mass (m) = 20 kg Height (h) = 3 m Time (t) = 5 s Required: Power (P)

Q: Q5 Three forces A, B and C are acting on an object as shown in the figure, what is the magnitude of…

A:

Q: Newton's Law Law. Which of the following scenarios demonstrates Newton's 2nd Law? O A cyclist is…

A: Newton's second law of motion describe the law of inertia.

Q: A parallel plate capacitor, separated by a distance of 0.9 mm, has plates of area 300 cm^2 . The…

A: The correct answer is option (2) i.e.    1.475 x 10-6 J

Q: I. PROJECTILE MOTION A. PROBLEM SOL VING. Compute for the following. 1. A cannon ball was fired…

A: We have a ball with initial horizontal velocity ux=3 m/s which is projected from a height of h=50 m.…

Q: 4. Suppose a force of 100 N is applied to a piston

A: GivenF1=100 NA1=0.0005 m2AndA2=0.01 m2

Q: Practice Problem 3.3 Find v and i in the circuit of Fig. 3.11. 6 V 42 Answer: -400 mV, 2.8 A. 14 V…

A:

Q: 3): Answer the followings (Only Ten)? 1. In Taylor-Orowan dislocation, The amount of force required…

A: In Taylor-Orowan dislocation. The amount of force required to form and move an edge dislocation is…

Q: 8. Consider two blocks, A and B, where ma < mB. They are pulled by a horizontal force with the same…

A: Given : No friction between block b and Table, mA &lt; mB , Pulled by same horizontal force F.…

Q: A aluminum tank with a wall thickness of 3.0mm and radius of 112mm is 7m long was pressurized to…

A: Given, t = 3.0 mm radius (r) = 7 m Pressure (P) = 270 kPa  The longitudinal stress can be calculated…

Q: A racing car has a uniform acceleration of 12 m/s?. What distance will it cover in 10 seconds after…

A: Acceleration=12m/s² Time=10sec

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.