Which of the following will NOT be observed w | vedclass

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(B) multimeter in resistance mode applies a small $DC$ voltage across the component to measure current. $(1)$ For a capacitor, the multimeter will sho

Vedclass · Accepted Answer

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

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(B) multimeter in resistance mode applies a small $DC$ voltage across the component to measure current. $(1)$ For a capacitor, the multimeter will show a transient deflection as it charges, regardless of probe polarity. Thus, the statement that it shows $NO$ deflection is incorrect. $(2)$ An $LED$ is a diode. In forward bias, it conducts (showing deflection), and in reverse bias, it blocks current (no deflection). The option suggests the opposite behavior, making it the observation that will $NOT$ occur. $(3)$ For a metal wire, the resistance is nearly $0 \ \Omega$, so the multimeter will show $NO$ deflection (or a reading of $0$). $(4)$ $A$ resistor is an ohmic component; its resistance is independent of the direction of current, so the deflection remains the same when probes are reversed.

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

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