Question 1 of 10
What is the SI unit for electric power?
The SI unit for electric power is the Watt (W).
Question 2 of 10
Which formula correctly represents Ohm's Law for calculating voltage (E) in a DC circuit?
Ohm's Law states that voltage (E) is equal to current (I) multiplied by resistance (R).
Question 3 of 10
What does 'I' represent in the DC circuit formulas?
'I' represents Current in Amperes (A).
Question 4 of 10
If the power (P) in a DC circuit is 100W and the voltage (E) is 10V, what is the current (I)?
Using the formula I = P / E, the current is 100W / 10V = 10A.
Question 5 of 10
What is the formula to calculate resistance (R) if you know the voltage (E) and current (I) in a DC circuit?
The resistance (R) is calculated by dividing voltage (E) by current (I).
Question 6 of 10
What is the SI unit for electric current?
The SI unit for electric current is Ampere (A).
Question 7 of 10
Which of the following formulas can be used to calculate power (P) in a DC circuit?
Power (P) can be calculated using the formula P = E × I.
Question 8 of 10
What is the SI unit for electrical resistance?
The SI unit for electrical resistance is the Ohm (?).
Question 9 of 10
If the current (I) is 2A and the resistance (R) is 10?, what is the voltage (E)?
Using the formula E = I × R, the voltage is 2A * 10? = 20V.
Question 10 of 10
Which formula represents the relationship between power (P), voltage (E), and resistance (R) in a DC circuit?
Power (P) can be calculated as P = E² / R
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