#1
In a combination circuit, what remains constant throughout the circuit?
Current
ExplanationCurrent remains constant in a combination circuit.
#2
What happens to the total current in a parallel circuit when one of the branches is disconnected?
It remains the same
ExplanationTotal current remains the same in a parallel circuit even if one branch is disconnected.
#3
What is the equivalent resistance of resistors connected in series?
The sum of individual resistances
ExplanationEquivalent resistance of resistors connected in series is the sum of individual resistances.
#4
What is the relationship between voltage and current in a resistor?
Directly proportional
ExplanationVoltage and current in a resistor are directly proportional.
#5
What is the total resistance in a circuit if resistors are connected in parallel?
Equal to the reciprocal of the sum of individual resistances
ExplanationTotal resistance in a circuit with resistors connected in parallel equals the reciprocal of the sum of individual resistances.
#6
What happens to the total resistance in a series-parallel combination circuit compared to a pure series circuit?
It decreases
ExplanationTotal resistance decreases in a series-parallel combination circuit.
#7
In a combination circuit, where is the voltage drop across each resistor the same?
In parallel resistors
ExplanationVoltage drop is the same across parallel resistors in a combination circuit.
#8
What is the relationship between voltage, current, and resistance in Ohm's Law?
I = V/R
ExplanationOhm's Law states that current (I) equals voltage (V) divided by resistance (R).
#9
Which law describes the conservation of energy in an electrical circuit?
Kirchhoff's Voltage Law
ExplanationKirchhoff's Voltage Law describes the conservation of energy in an electrical circuit.
#10
What is the unit of electrical potential difference?
Volt
ExplanationVolt is the unit of electrical potential difference.
#11
What is the formula for power dissipation in a resistor?
P = V^2/R
ExplanationPower dissipation in a resistor is calculated using the formula P = V^2/R.
#12
What is the voltage across resistors in series with different resistance values?
Proportional to resistance
ExplanationVoltage across series resistors with different resistance values is proportional to the resistance.
#13
What is the total voltage in a combination circuit with resistors in parallel?
The highest voltage
ExplanationTotal voltage in a combination circuit with parallel resistors is equal to the highest voltage.
#14
What happens to the total resistance in a pure parallel circuit as more resistors are added?
It decreases
ExplanationTotal resistance decreases as more resistors are added in a pure parallel circuit.
#15
How does the total current in a parallel circuit compare to the current through each branch?
It is equal to the sum of currents in each branch
ExplanationTotal current in a parallel circuit equals the sum of currents in each branch.
#16
What effect does increasing resistance have on current flow in a circuit?
Decreases current
ExplanationIncreasing resistance in a circuit decreases the current flow.
#17
In a circuit with a battery and resistors in parallel, what is the voltage drop across each resistor?
Equal for each resistor
ExplanationVoltage drop across each resistor in parallel is equal.