..........................................................
2<span>cos2(θ)−1 = 0
</span><span>2cos2(θ)=1
</span><span>cos2(θ)=1/2
</span><span>2θ=arc cos1/2
</span><span>2θ=60 degrees
</span><span>θ=30 degrees</span>
Answer:
The current is 0.921 A.
Explanation:
Given that,
Voltage = 120 V
Current = 13000
Current exceeds = 8.50 mA
We need to calculate the current rating
Using relation of current and voltage
.....(I)
Where, = current in primary circuit
= current in secondary circuit
= voltage in primary circuit
= voltage in primary circuit
Put the value into the formula
Hence, The current is 0.921 A.
Answer:
With the development in technology scientists now have improved ways to predict future climates based on past data and past accuracy in such predictions. Researchers can predict future climates by entering past climate data into a computer program if it accurately provides current climate based on data from the past, then we can also predict future climate.
Explanation:
Climate Change is the different changes in the Earth's climate. These changes include changes in some Earth's climate such as temperature, precipitation, rising sea levels.
Over the years, the climate of the Earth continued to get worst, majorly due to the numerous activities of humans which has negatively affected Earth's climate. Some of the scientific research shows increased deforestation, the use of power plants, vehicles, and industries that still uses fossil fuels emit carbon dioxide which traps heat in the atmosphere, are some of the numerous activities of humans that have led to climate change. Using clean and renewable energy sources, preventing deforestation, are some of the ways to improve the climate.
There is no picture given so I can't be really sure what color of the cable you're referring to. However, the only relationship I can think of when the power and the current is given would be: P=IV or P = I²R, where P is power, I is current, V is voltage and R is resistance. Solving both equations:
120 W = (24 A)(Voltage)
Voltage = 5 V
120 W = (24 A)²(R)
R = 0.2083 Ω
So, i think the cable would have specification of 5 Volts and 0.2083 ohms.