Question 1 of 15
What is the SI unit of electric charge?
Coulomb (C) is the unit used to measure electric charge.
Question 2 of 15
Which law states that the current through a conductor between two points is directly proportional to the voltage across the two points?
Ohm's law describes the relationship between voltage, current and resistance.
Question 3 of 15
What is the formula for calculating electrical power (P) in a DC circuit?
Electrical power is the product of voltage and current: P = V*I
Question 4 of 15
What is the reciprocal of resistance called?
Conductance is the ability of a material to conduct electricity, inverse of resistance.
Question 5 of 15
What is the unit of measurement for electrical resistance?
The Ohm (?) is the SI unit for electrical resistance.
Question 6 of 15
In a series circuit, what is constant across all components?
In a series circuit, the current is the same through all components.
Question 7 of 15
In a parallel circuit, what is constant across all components?
In a parallel circuit, the voltage is the same across all components.
Question 8 of 15
What does KCL (Kirchhoff's Current Law) state?
KCL states that the total current entering a node is equal to the total current leaving the node.
Question 9 of 15
What does KVL (Kirchhoff's Voltage Law) state?
KVL states that the sum of the voltages in a closed loop is equal to zero.
Question 10 of 15
What is the unit of measurement for electric potential difference?
The volt (V) is the unit of electric potential difference (voltage).
Question 11 of 15
What is the equivalent resistance of three 6-ohm resistors connected in parallel?
1/R_eq = 1/6 + 1/6 + 1/6 = 1/2 => R_eq = 2 ohms
Question 12 of 15
What is the relationship between voltage, current, and resistance according to Ohm's Law?
Ohm's Law is expressed as Voltage (V) = Current (I) * Resistance (R)
Question 13 of 15
What is the purpose of a capacitor in an electrical circuit?
A capacitor stores electrical energy in an electric field.
Question 14 of 15
What is the equivalent resistance of two 10-ohm resistors connected in series?
In a series circuit, resistances add up: R_eq = 10 + 10 = 20 ohms
Question 15 of 15
Which of the following is NOT a fundamental electrical quantity?
Power is derived from voltage and current (P=VI), therefore it is not a fundamental quantity.
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