The correct formula for finding power in a DC circuit is ( P = V \times I ), where ( P ) represents power in watts, ( V ) is the voltage in volts, and ( I ) is the current in amperes. Additionally, power can also be calculated using ( P = I^2 \times R ) or ( P = \frac{V^2}{R} ), where ( R ) is the resistance in ohms. These formulas allow you to determine power based on different known quantities in the circuit.
For a nine kW shower circuit, the appropriate current rating for a protective device is typically 40 A. This is calculated using the formula: Power (W) = Voltage (V) x Current (A). Assuming a standard voltage of 230 V, the current required would be approximately 39 A, so a 40 A protective device would be suitable. Thus, none of the given options (13 A, 15 A, 35 A) are correct for this application.
Current = (Voltage across the circuit) divided by (Total resistance of the circuit). The current is the same at every point in the series circuit.
Resistance of the circuit = (voltage across the circuit) divided by (current through the circuit)
faradays second law
force/area = stress (it's the same as pressure)
multiply the total voltage in the circuit by the total amperage
The correct formula for aluminum oxide is Al2O3.
refer your text
If you want to ask questions about "which of these", then I suggest that you make sure that there is something that is following.
It isn't clear what you mean by "the following". Power is energy divided by time - the rate at which energy is converted or transferred.
The area of a circle with a known radius can calculated using the following formula where r is the radius : A = Pi(r)2
Following Newton's second formula, unbalanced force is the product of mass of the object and the acceleration produced. F=ma
MgO2 is not a correct formula unit. Magnesium oxide typically has a formula unit of MgO, where magnesium has a +2 charge and oxygen has a -2 charge, resulting in a balanced compound.
No because the formula for finding the area of an oval, which is an ellipse, is quite different
The formula for finding probability depends on the distribution function.
Two silver sulfates are known: - Ag2SO4 - AgSO4 The tricarbon dioxide has the formula: C3O2.
To determine the correct set of empirical formula molar mass and molecular formula, you need to compare the empirical formula's mass with the molecular formula's mass. The molecular formula is a whole-number multiple of the empirical formula. Without specific options provided, I cannot identify the correct set, but generally, you would calculate the molar masses and ensure the molecular formula is a multiple of the empirical formula. Please provide the specific sets for a more precise answer.