Kirchhoff's Laws

What law is Kirchoff's second law a consequence of?

• Conservation of Energy

• Conservation of Mass

• Conservation of Momentum

• Conservation of Charge

Tags

NGSS.HS-PS2-5

These are the basic laws used for analyze series, parallel, and mixed electric circuit.

• Kirchhoff's laws

• Faraday's laws

• Ohm's laws

• Joule's laws

How many Kirchhoff's laws are there?

• 2

• 3

• 4

• 5

Which of the following is an advantage of Kirchhoff's law?

• the calculation of unknown voltages and currents become easy

• the simplification of complex closed-loop circuits becomes manageable

• both of these

• none of these

What does Kirchhoff's Voltage Law (KVL) state?

• 
  The sum of all currents entering a junction must equal zero.

• The total resistance in a series circuit is equal to the sum of individual resistances.

• The sum of all voltages around a closed loop must equal zero.

• 
  The voltage across each component in parallel is different.

What does Kirchhoff's Current Law (KCL) state?

• The sum of all currents entering a junction is equal to the sum of all currents leaving the junction.

• The total resistance in a parallel circuit is equal to the sum of individual resistances.

• The sum of all voltages around a closed loop must equal zero.

• The voltage across each component in series is the same.

Which of the following conservation happens in Kirchhoff's first law?

• conservation of mass

• conservation of energy

• conservation of charge

• conservation of momentum

What is Kirchhoff's Current Law (KCL) primarily concerned with?

• The sum of all currents entering a junction equals the sum of all currents leaving the junction.

• The sum of all voltages around a closed loop equals zero.

• The total resistance in a series circuit is the sum of individual resistances.

• The voltage across each component in parallel is the same.

Which physical principle is Kirchhoff's Voltage Law (KVL) based on?

• Conservation of Energy

• Conservation of Mass

• Conservation of Momentum

• Conservation of Charge

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-5

In a circuit, if the sum of the voltages around a closed loop is not zero, what does this indicate?

• There is a power source in the loop.

• The circuit is open or incomplete.

• There is a short circuit.

• The components are not connected in series.