____ emotions can influence your driving. A. Only some B. All of your C. Only negative D. Only positive
2 answers:
You might be interested in
Answer:
The voltage source required to provide 1.6 A of current through the 75 ohm resistance is 120 V.
Explanation:
Given;
Resistance, R₁ = 50Ω
Resistance, R₂ = 75Ω
Total resistance, R = (R₁R₂)/(R₁ + R₂)
Total resistance, R = (50 x 75)/(125)
Total resistance, R = 30 Ω
According to ohms law, sum of current in a parallel circuit is given as
I = I₁ + I₂
Voltage across each resistor is the same
V = 1.6 x R₂
V = 1.6 x 75
V = 120 V
Therefore, the voltage source required to provide 1.6 A of current through the 75 ohm resistance is 120 V.
This voltage is also the same for 50 ohms resistance but the current will be 2.4 A.
Given:
voltage, V = 3600V
step-up voltage, V' = 100000 V
Resistance of line,
Solution:
To calculate % heat loss in long distance power line:
Power produced by AC generator, P = W
P = 180000 W = 180 kW
At step-up voltage, V = 100000V or 100 kV
current, I =
I =
I = 1.8 A
Power line voltage drop is given by:
Power dissipated in long transmission line
Power dissipated in long transmission line = 324 W
% Heat loss in power line,
% Heat loss in power line,