The following gives the data when 100 regular light bulbs are replaced with 100 LED light bulbs. Ignore the interest rate and assume the electricity cost is $0.17/kWh. What will be the saving (in $) for 1200 hours? Regular light bulbs: Cost per piece: $1.00 Power rate: 100 W Lifetime: 2000 hours LED light bulbs: Cost per piece: $2.00 Power rate: 15 W Lifetime: 20000 hours A 2394 B 2190 C) 1986 D 1782 E 1578

The following gives the data when 100 regular light bulbs are replaced with 100 LED light bulbs. Ignore the interest rate and assume the electricity cost is $0.17/kWh. What will be the saving (in $) for 1200 hours? Regular light bulbs: Cost per piece: $1.00 Power rate: 100 W Lifetime: 2000 hours LED light bulbs: Cost per piece: $2.00 Power rate: 15 W Lifetime: 20000 hours A 2394 B 2190 C) 1986 D 1782 E 1578

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter25: Surge, Spike, And Lightning Protection

Section: Chapter Questions

Problem 4RQ: If a voltage spike lasts for 1.5 nanoseconds, what is the frequency of the spike?

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