Basic Electrical Engineering DC Circuits Quiz
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10 Questions
Question 1 of 10
What is the relationship between voltage (V), current (I), and resistance (R) in a DC circuit?
Ohm's Law: Voltage is directly proportional to current and resistance.
Question 2 of 10
In a series circuit, what is constant across all components?
Current flows through each component in series without splitting.
Question 3 of 10
In a parallel circuit, what is constant across all components?
Voltage is applied across all parallel paths.
Question 4 of 10
What is the unit of measurement for electrical resistance?
Resistance is measured in Ohms (?).
Question 5 of 10
How is the total resistance calculated in a series circuit?
Series resistance adds up directly.
Question 6 of 10
How is the total resistance calculated in a parallel circuit?
Reciprocal formula is used for parallel resistance.
Question 7 of 10
What is the formula for calculating power (P) in a DC circuit?
Power is the product of voltage and current.
Question 8 of 10
Which of the following is the standard symbol for a resistor in a circuit diagram?
A zigzag line represents a resistor.
Question 9 of 10
What is the equivalent resistance of two 10-ohm resistors connected in parallel?
Parallel resistance: 1/R_total = 1/10 + 1/10; R_total = 5 ohms.
Question 10 of 10
If a 12V battery is connected to a 4-ohm resistor, what is the current flowing through the resistor?
Using Ohm's Law: I = V/R = 12V / 4 ohms = 3 A
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