Question 126: Semiconductors and Logic Gates

Question

Which of the following will NOT be observed when a multimeter (operating in resistance measuring
mode) probes connected across a component, are just reversed?

Accepted Answer

(1) Multimeter shows deflection when it connects with capacitor.
(2) If we assume that LED has negligible resistance then multimeter shows no deflection for the forward bias but when it connects in reverse direction, it break down occurs so splash of light out.
(3) The resistance of metal wire may be taken zero, so no deflection in multimeter.
(4) No matter, how we connect the resistance across multimeter. It shows same deflection.

Answer

Multimeter shows NO deflection in both cases i.e. before and after reversing the probes if the
chosen component is metal wire.

Answer

Multimeter shows a deflection, accompanied by a splash of light out of connected component in one direction and NO deflection on reversing the probes if the chosen component is LED.

Answer

Multimeter shows an equal deflection in both cases i.e. before and after reversing the probes if
the chosen component is resistor.

Answer

Multimeter shows NO deflection in both cases i.e. before and after reversing the probes if the
chosen component is capacitor.

Semiconductors and Logic Gates

Which of the following will NOT be observed when a multimeter (operating in resistance measuring mode) probes connected across a component, are just reversed?

Choose the correct answer: