What can you expect from moving 5500 feet higher?
1 answer:
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Initially there were 10 bulbs of 60 Watt power
So total power of all bulbs = 60 * 10 = 600 W
now each bulb used for 4 hours daily
so total energy consumed daily
E = p*t
E = 600*4 = 2400Wh
E = 2.4kWH
now we have total power consumed in 1 year
E = 365 * 2.4 = 876kWh
cost of electricity = 10 cents/ kWh
so total cost of energy for one year
P1 = 876*10 = 8760cents = 87.60
Now if all 60 Watt bulbs are replaced by 30 Watt bulbs
So total power of all bulbs = 30 * 10 = 300 W
now each bulb used for 4 hours daily
so total energy consumed daily
(The next steps are in the pic.)
Answer:
(a) emf = 0.507 V
(b) emf = 0.0507 V
(c) emf = 0.00234 V
Explanation:
Given;
number of turns of the coil, N = 40 turns
diameter of the coil, d = 11 cm
radius of the coil, r = 5.5 cm = 0.055 m
magnitude of the magnetic field, B = 0.4 T
The magnitude of the induced emf is calculated as;
(a) when the time, t = 0.3 s
(b) when the time, t = 3.0 s
(c) when the time, t = 65 s