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ELEMENTARY STEPS IN THE ELECTRICAL CIRCUIT LAW ELEMENTARY

José García Coleto jogarcol@yahoo.es
http://coleto-automatismosyautomatas.blogspot.com/

CONTENTS:

INTRODUCTION - FIGURES IN THE ELECTRICAL CIRCUIT ELEMENTARY - OHM'S LAW - ACTION ON ELECTRIC circuits is ELEMENTAL. - ELECTRIC POWER CIRCUIT ELEMENTAL . - POWER. - ISSUES. - BASIC FACILITIES SCHEDULES - BASIC FACILITIES SCHEME (II) - CHARACTERISTICS OF CIRCUITS HOUSING.

MEASURES IN THE ELEMENTARY ELECTRICAL CIRCUIT.

We have said that the basic electrical circuit had three fundamental values: voltage, resistance and intensity, which magnitudes are related by Ohm's Law as we have seen. For the establishment of this law is necessary to make measurements of these quantities in the circuit and see that actually meets Ohm's Law.

Measure voltage or electric potential difference (V)

The dap is measured with the voltmeter, the measurement device is connected in parallel with the circuit to which you want to measure voltage.

As shown in the figure has been connected a voltmeter (V) in parallel with the lamp circuit, thus determine the potential difference between terminals of the lamp.

The measurement result is expressed in volts (V)

Submutiplos (mV) mV. 1 V = 1000 mV
Multiples (KV) kV 1 kV = 1000 V

Measuring the intensity of electric current (I)

intensity electric current is measured with the ammeter, this device is connected in series with the electric circuit to which you want to measure the intensity.

As you can see the ammeter (A) was inserted in series with the circuit, thus determining the intensity of the electric current running through the circuit.