how can we find the input resistor & output resistor of any simple electronic circuit (practically)?

Answer 1

PARDON!

Answer 2

Measure input current. Measure input voltage.

Input resistance = Input voltage/Input current

Measure output voltage. Measure output current.

Output resistance = Output voltage/Output current

For output, you might have to apply a load, because using the ammeter to measure current might pull the output voltage down, thus not giving you an accurate measurement of resistance.

Answer 3

The best way is to have a look at the circuit diagram...... You can’t measure the value of individual resistors accurately in any circuit.

Answer 4

There are too many to record. The filament in a lightbulb is a resistor. So is the heating ingredient on your range. the quantity knobs on your radio, or guitar, are referred to as potentiometers, or variable resistors. this enables you to alter the mount of resistance, thereby increasing or reducing the quantity of modern occurring your speaker. LED's (easy emitting diodes) are truly one-way resistors. permit's think you have a gadget that desires in straight forward terms 5 volts to run, yet you plug in a 9 V battery. you ought to use resistors to shrink the voltage to 5 V. different digital units, such as capcitors and inductors, also have a resistance, yet they call it impedance. that's for alternating currents (e.g. your wall outler) rather than direct modern (e.g. a battery).

Answer 5

Measure the input voltage and current and calculate it directly.
Measure the output voltage under no-load conditions, then put a load on it and measure the voltage drop and output current. That will give you the source (Thevenin) resistance of the circuit.

HTH ☺

Doug

Answer 6

they are all coloured coded IE
white neutral less resistors you will have to get the
codes i have got them not at hand sorry you can
get them f rom your libery in eletronics good luck