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5. During a random lightning strike from a cloud to the ground, a current of 25,000...
6. The graphs show the temperature dependence of resistance for two materials. How do the ( point) materials compare? 0 Material A Material B OMaterial A is a typical conductor, whereas material B is a typical insulator. O Material A is a superconductor, whereas material B is a typical metal. OMaterial A is a typical metal, whereas material B is a superconductor. OMaterial A is a typical insulator, whereas material B is a typical conductor. 7. The SI unit ohm...
8. The graphs show the temperature dependence of resistance for two materials How do the l point) materials compare? Material A Material8 Material A is a typical conductor, whereas material B is a typical insulator Material A is a superconductor, whereas material B is a typical metal. Material & is a typical metal, whereas material B is a superconductor. Material A is a typical insulator, whereas material B is a typical conductor 9. An electric current is set up in...
In a typical lightning strike, 2.5 C flows from cloud to ground in 0.20 ms.What is the current during the strike?
A lightning strike can transfer as much as 1020 electrons from the cloud to the ground. If the strike lasts 2ms, what is the average electric current in the lightning
During lightning strikes from a cloud to the ground, currents as high as 2.50×104 A can occur and last for about 40.0 μs . How much charge is transferred from the cloud to the earth during such a strike
14. (10 pts) Lightning (a flow of electrons between the ground and a thundercloud) lasts about 120us. The rate of charge flow in a typical lightning bolt is about 25,000 coulombs per second. A) How much total charge flows between the ground and the cloud during a typical lightning bolt? B) How many electrons flow during this time? 15. (10 pts) 4 charges are placed at the corners of a square of side 1 m. What is the electric field...
10. Lightning. The time profile of the discharge current in a typical cloud to ground lightning stroke can be modelled by a triangle. The surge takes 1 us to reach the peak value of 100 kA and is then reduced to zero in 99 us. If the cloud-to-ground voltage before the discharge is 400 MV, find the electrical charge Q discharged, and the total energy W released, if there is an average of 20 such lightening stokes per hour. (a)...
6 At20 C, alength ofcopper wire has a resistance of 5 0 Ω What is its resistance when the wire ts heated to 80°C?It α-0004 at 200C. apoie) 01,2 Ω 07.5 Ω 0 622 10Ω 7. During a random lightning strike from a cloud to the ground, a current of 25,000 A lasts for 40 ( poin) ps. How much charge is transferred from the cloud to earth during that strike? 020 C 1.6C 0 10 C 2.5 C
During a thunderstorm, a lightning "bolt" carries current between a cloud and the ground below. If a particular bolt carries a total charge of 15 C in 1.5 ms, what is the magnitude of the current? A How many electrons are involved in this process? electrons
During a lightning flash, there exists a potential difference of cloud - Vground = 1.2 x 10º v between a cloud and the ground. As a result, a charge of -19 C is transferred from the ground to the cloud. (a) How much work wground-cloud is done on the charge by the electric force? (b) If the work done by the electric force were used to accelerate a 1100-kg automobile from rest, what would be its final speed? (c) If...