Fundamentals of Basic Electric System Quiz
hard
5 Questions
Question 1 of 5
Which of the following best describes the relationship between voltage, current, and resistance as defined by Ohm's Law?
Ohm's Law states: V = I * R. Solving for I gives I = V/R, reflecting the stated relationship.
Question 2 of 5
In a series circuit, if one resistor fails open (becomes infinite resistance), what is the effect on the circuit?
An open circuit breaks the path for current flow. Hence, the current becomes zero throughout the circuit.
Question 3 of 5
What is the primary function of a fuse in an electrical circuit?
Fuses are designed to melt and break the circuit if the current exceeds a certain threshold, protecting from overcurrent.
Question 4 of 5
What is the equivalent resistance of three resistors (10 ohms, 20 ohms, and 30 ohms) connected in parallel?
1/R_eq = 1/10 + 1/20 + 1/30. Solving for R_eq gives approximately 5.45 ohms.
Question 5 of 5
What is the unit of measurement for electric power?
Electric power is measured in Watts (W), which is the rate at which electrical energy is transferred.
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