A light bulb, a capacitor and a battery are connected together as shown in figure with switch initially open when the switch S is closed which one of the following is true

Question

A light bulb, a capacitor and a battery are connected together as shown in figure with switch initially open when the switch S is closed which one of the following is true <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/371c1d248cdc0ebc671d7dc6fadfa3d3-.png" /> (A) The bulb will light up for an instant when the capacitor start charging (B) The bulb will light up when the capacitor is fully charged (C) The bulb will not light up at all (D) The bulb will light up go off at regular intervals

Tardigrade Admin · Accepted Answer

Initially when the key is closed the capacitor acts as short circuit so bulb will light up . But finally the capacitor becomes fully charged it will act as open circuit, so bulb will not glow

Q. A light bulb, a capacitor and a battery are connected together as shown in figure with switch initially open when the switch S is closed which one of the following is true

The bulb will light up for an instant when the capacitor start charging

The bulb will light up when the capacitor is fully charged

The bulb will not light up at all

The bulb will light up & go off at regular intervals

Initially when the key is closed the capacitor acts as short circuit so bulb will light up . But finally the capacitor becomes fully charged it will act as open circuit, so bulb will not glow