Question 1 of 10
What is the SI unit of electrical power?
The SI unit of electrical power is the Watt (W).
Question 2 of 10
What is the formula for calculating electrical power (P) when voltage (V) and current (I) are known?
Electrical power is calculated using the formula P = V * I, where V is voltage and I is current.
Question 3 of 10
If a device has a voltage of 12V and a current of 2A, what is its power consumption?
Using P = V * I, with V = 12V and I = 2A, the power is 12 * 2 = 24W.
Question 4 of 10
According to Ohm's law, what is the relationship between voltage (V), current (I), and resistance (R)?
Ohm's law states that V = I * R.
Question 5 of 10
What is the formula for calculating power (P) using current (I) and resistance (R)?
The formula is P = I^2 * R.
Question 6 of 10
What does a 'producer' in an electrical circuit do?
A producer generates or supplies electrical power to the circuit.
Question 7 of 10
Which of the following is an example of an electrical 'consumer'?
A resistor consumes electrical energy and converts it into heat.
Question 8 of 10
What type of energy does a motor convert electrical energy into?
A motor converts electrical energy into mechanical energy.
Question 9 of 10
What is the effect of applying one volt of potential difference to a circuit and forcing one ampere of current through it?
One watt is the electrical power consumed when one volt of potential difference is applied to a circuit and it forces one ampere of current to flow through it.
Question 10 of 10
What are the two main types of electrical power, based on the nature of current flow?
The two main types are Direct Current (DC) and Alternating Current (AC).
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