Hi tecnolovers ;
We have learned how to measure the resistance, voltage and current in real circuit. In this post we'll show you how to do it.
MEASURE VOLTAGE (V)
To measure voltage we use a multimeter.
When the circuit is connected and closed, you must put the ends of the multimeter in the corresponding wires of the circuit. For example:
To measure Vr1: You put the ends of the multimeter on each side of the resistor without opening the circuit.
MEASURE CURRENT (I):
We also use the multimeter but this time we open the circuit so that the current can pass through the end of the mutimeter, making it part of the circuit, in a way.
MEASURE RESISTANCE (R):
To measure or calculate the value of a resistor we look at the coloured lines it has. Always put the gold or silver line to the right side, this indicates the percentage of the value.
To calculate the total resistance:
SERIES: Rt = R1+R2
PARALELL: 1/Rt = 1/R1 + 1/R2
Here is a table to learn how to calculate the vaules.
