B
b/c newtons third law of motion is: "For every action, there is an equal and opposite reaction."
Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants get rid ofcarbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.
Explanation:
The dimension of a single rectangular loop is 0.46 m x 0.68 m.
Magnetic field, B = 3 T
The loop is inclined at an angle of 67 degrees with respect to the normal to the plane of the loop.
It is required to find the magnitude of the average emf induced in the loop if the magnetic field decreases to zero in a time of 0.49 s.
Te induced emf in the loop is given by :
So, the magnitude of the average emf induced in the loop is 0.74 V.
Answer:
37.7 Ω
Explanation:
The resistance in each lamp is:
P = IV = V²/R
R = V²/P
R₁ = (110 V)² / (150 W)
R₁ = 80.67 Ω
R₂ = (110 V)² / (200 W)
R₂ = 60.5 Ω
Their combined resistance in parallel is:
1/R = 1/R₁ + 1/R₂
1/R = 1/(80.67 Ω) + 1/(60.5 Ω)
R = 34.57 Ω
So the current that goes through them is:
V = IR
I = V/R
I = (110 V) / (34.57 Ω)
I = 3.182 A
We need the same current in the new circuit.
V = IR
230 V = (3.182 A) (R₃ + 34.57 Ω)
R₃ = 37.7 Ω
We can check our answer by finding the voltage drop across this resistor:
V = I R₃
V = (3.182 A) (37.7 Ω)
V = 120 V
230 V − 120 V = 110 V, the correct voltage for the lamps.
Answer:
English
Electrical phenomena are commonplace and unusual events that can be observed and that illuminate the principles of the physics of electricity and are explained by them. Electrical phenomena are a somewhat arbitrary division of electromagnetic phenomena
Los fenómenos eléctricos son eventos comunes e inusuales que se pueden observar y que iluminan los principios de la física de la electricidad y son explicados por ellos. Los fenómenos eléctricos son una división algo arbitraria de los fenómenos electromagnéticos.
