Kirchhoff's Law

What is the total potential difference supplied to a circuit when identical cells are in parallel with each other?

• Vtotal = V1 + V2 + V3

• Vtotal = V1 = V2 = V3

• Vtotal = V1 + V2

• Vtotal = V1

What is the total resistance when resistors are in series with each other?

• Total resistance is the average of individual resistances

• Total resistance is the sum of individual resistances

• Total resistance is the product of individual resistances

• Total resistance is the difference of individual resistances

According to Kirchhoff's first law, what must be equal at a junction of wires?

• The sum of the charges must equal the sum of the potentials

• The sum of the emf's must equal the sum of the potential differences

• The sum of the voltages must equal the sum of the resistances

• The sum of the currents flowing into the junction must equal the sum of the currents flowing away from the junction

What is Kirchhoff's second law related to?

• Current in series circuits

• Potential difference in parallel circuits

• Potential changes around a closed loop in a circuit

• Voltage in resistors

In a circuit, what does Kirchhoff's Voltage Law state about the total voltage around a closed loop?

• It must be infinite

• It must be negative

• It must be positive

• It must be zero

What is the total current into any point in a circuit according to Kirchhoff's first law?

• Equal to the total charge

• Equal to the total resistance

• Equal to the total current out of that point

• Equal to the total voltage

What is the result of the electrostatic field being conservative in Kirchhoff's Voltage Law?

• Total voltage around a closed loop must be zero

• Total voltage must be negative

• Total voltage must be infinite

• Total voltage must be positive

What is the sum of potential rises and falls around a closed path in a circuit according to Kirchhoff's second law?

• Negative

• Positive

• Infinite

• Zero

What is the total voltage around a closed loop in Kirchhoff's Voltage Law if the loop's direction is from the negative terminal to the positive terminal?

• IR

• -IR

• -V

• +V

In a circuit, what does Kirchhoff's first law state about the total current into any point?

• Equal to the total current out of that point

• Equal to the total charge

• Equal to the total resistance

• Equal to the total voltage