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Understanding Voltage Distribution in Combination Circuits Quiz

#1

In a combination circuit, what remains constant throughout the circuit?

Current
Explanation

Current 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
Explanation

Total 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
Explanation

Equivalent 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
Explanation

Voltage 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
Explanation

Total 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
Explanation

Total 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
Explanation

Voltage 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
Explanation

Ohm'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
Explanation

Kirchhoff's Voltage Law describes the conservation of energy in an electrical circuit.

#10

What is the unit of electrical potential difference?

Volt
Explanation

Volt is the unit of electrical potential difference.

#11

What is the formula for power dissipation in a resistor?

P = V^2/R
Explanation

Power 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
Explanation

Voltage 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
Explanation

Total 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
Explanation

Total 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
Explanation

Total 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
Explanation

Increasing 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
Explanation

Voltage drop across each resistor in parallel is equal.

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