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Hukum Kirchoff
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Hukum Kirchoff

Objective Measure voltage and current in circuits featuring resistors in series and in parallel

Summary
Kirchhoff’s laws are of key importance for calculating current and voltage in various parts of a circuit with multiple branches. In this experiment, Kirchhoff’s laws will be verified by measuring voltage and current in various parts of circuits featuring resistors in series and parallel.

Experiment Procedure
• Verify Kirchhoff’s laws for a circuit featuring resistors in series.
• Determine the overall resistance of a series circuit. • Verify Kirchhoff’s laws for a circuit featuring resistors in parallel.
• Determine the overall resistance of a parallel circuit.

Required Apparatus
1 Plug-In Board for Components [1012902]
1 Resistor 220 Ω, 2 W, P2W19 [1012912]
1 Resistor 330 Ω, 2 W, P2W19 [1012913]
1 Resistor 470 Ω, 2 W, P2W19 [1012914]
1 Resistor 1 kΩ, 2 W, P2W19 [1012916]
1 Resistor 6.8 kΩ, 2 W, P2W19 [1012921]
1 Resistor 10 kΩ, 0.5 W, P2W19 [1012922]
1 Resistor 100 kΩ, 0.5 W, P2W19 [1012928]
1 Set of 10 Jumpers, P2W19 [1012985]
1 DC Power Supply 0 – 20 V, 0 – 5 A (230 V, 50/60 Hz) [1003312]
2 Analogue Multimeter ESCOLA 30 [1013526]
1 Set of 15 Experiment Leads, 75 cm 1 mm² [1002840]

Basic Principles In 1845 Gustav Robert Kirchhoff formulated laws describing the relationship between voltage and current in electric circuits which include multiple branches. Kirchhoff’s 1st law (current law or junction rule) states that at every point where a circuit branches the sum of the currents flowing towards the junction are equal to the sum of currents flowing away from it. His 2nd law (voltage law, loop or mesh rule) states that, for any loop in any closed circuit, the sum of the voltages in all the branches is equal to the overall voltage provided by the source to that loop. For such loops, a direction of flow is defined. Currents flowing around the loop in the defined direction and voltages which cause such current to flow are considered to be positive, whereas if the currents flow in the opposite direction they are considered to be negative, along with the voltages driving them. These rules can, for example, be applied to circuits featuring resistors in series or in parallel.

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Description

Merk: 3B SCIENTIFIC

Objective Measure voltage and current in circuits featuring resistors in series and in parallel

Summary
Kirchhoff’s laws are of key importance for calculating current and voltage in various parts of a circuit with multiple branches. In this experiment, Kirchhoff’s laws will be verified by measuring voltage and current in various parts of circuits featuring resistors in series and parallel.

Experiment Procedure
• Verify Kirchhoff’s laws for a circuit featuring resistors in series.
• Determine the overall resistance of a series circuit. • Verify Kirchhoff’s laws for a circuit featuring resistors in parallel.
• Determine the overall resistance of a parallel circuit.

Required Apparatus
1 Plug-In Board for Components [1012902]
1 Resistor 220 Ω, 2 W, P2W19 [1012912]
1 Resistor 330 Ω, 2 W, P2W19 [1012913]
1 Resistor 470 Ω, 2 W, P2W19 [1012914]
1 Resistor 1 kΩ, 2 W, P2W19 [1012916]
1 Resistor 6.8 kΩ, 2 W, P2W19 [1012921]
1 Resistor 10 kΩ, 0.5 W, P2W19 [1012922]
1 Resistor 100 kΩ, 0.5 W, P2W19 [1012928]
1 Set of 10 Jumpers, P2W19 [1012985]
1 DC Power Supply 0 – 20 V, 0 – 5 A (230 V, 50/60 Hz) [1003312]
2 Analogue Multimeter ESCOLA 30 [1013526]
1 Set of 15 Experiment Leads, 75 cm 1 mm² [1002840]

Basic Principles In 1845 Gustav Robert Kirchhoff formulated laws describing the relationship between voltage and current in electric circuits which include multiple branches. Kirchhoff’s 1st law (current law or junction rule) states that at every point where a circuit branches the sum of the currents flowing towards the junction are equal to the sum of currents flowing away from it. His 2nd law (voltage law, loop or mesh rule) states that, for any loop in any closed circuit, the sum of the voltages in all the branches is equal to the overall voltage provided by the source to that loop. For such loops, a direction of flow is defined. Currents flowing around the loop in the defined direction and voltages which cause such current to flow are considered to be positive, whereas if the currents flow in the opposite direction they are considered to be negative, along with the voltages driving them. These rules can, for example, be applied to circuits featuring resistors in series or in parallel.

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