2 Determine the resistomce of a bus ban made ot copper if the leng th is 10 metens long and the cress 4x4 cm? Sse 17241 M- ohm - cm secfion is as the resistrvity.

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A: Momentum always conserved. i.e momentum before collision will be equal to after the collision.

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Q: 4. In a spring experiment, the results were: (Bonus) Load 4 6 8 (N) 16 20 24 28 0 Length 8 (cm) 2 12…

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A: (5). Option C is correct. Equal and opposite.

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Q: Question 2 The block of weight 50 N is pressed against the spring so as to compress it a distance…

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Q: A Carnot engine rejects 100 MJ of energy every hour by transferring heat to a reservoir at 10°C.…

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Q: tanister. 13. How does the high heat capacity of water help the fish in a pond? A. The high heat…

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Q: 1.Two objects of the same size but unequal in weight are dropped from the top of a building.…

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Q: 0/1 point You are inside an elevator standing on a scale. You do not know anything about the motio…

A: Newtons third law : for every action there is equal and opposite reaction

Q: 1. equivalent resistance of the whole combination of resistors 2. total current through the battery…

A: Given, Resistances, R1=R4=20Ω,R2=30Ω,R3=50Ω Emf of battery, V=10 V

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A: 11) Given : mass, m = 24.5 kg                  Velocity, v = 11.5 m/s  Formula:             P = m v…

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Q: For the following potential distribution, calculate the electric field. V = 5R² cos 0 sin o -Select…

A: The electric field us given as the negative gradient if potential that is E=-dV/dr. Here will take…

Q: 21. An electron is accelerated to ten percent of the speed of electromagnetic radiation in a vacuum.…

A: 21. Since the electron is accelerated to 10% of the speed of electromagnetic radiation in  a vacuum…

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Q: 1. Calculate AH and AStotal when two iron blocks, each of mass 1.00 kg, one at 200°C and the other…

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Q: An object is undergoing SHM with a period of 1.20 s and an amplitude of 0.60 m. At t = 0 s, the…

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Q: 3. A projectile is launched at an angle of 22° and lands 45seconds later on the floor. (a) What is…

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Q: Calculate the molar entropy of a constant-volume sample of argon at 250 K given that it is 154.84…

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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.