Is it correct to say that a diode behaves like a closed switch in the forward biased condition and behaves like an open switch in the reverse-biased condition?

Is it correct to say that hydrogen can behave as a metal? If it is correct, mention the conditions under which such behaviour is possible.

Which organism behaves like plants in the presence of light and absence of organic food, but in reverse conditions behaves like animals?

A gas behave most like an Ideal gas under conditions of

In the following diagram, is the junction diode forward biased or reverse biased ?

If the switch at point P is opened (which was initially closed), choose the correct option (s).

How is forward biasing different from reverse biasing in a p-n junction diode?

Why is it that during changing weather, one is advised to avoid closed, crowded and air conditioned places like cinema halls etc?

For the arrangement shown in the figure, the switch is closed at t = 0 . C_2 is initially uncharged while C_1 has a charge of 2muC (a) Find the current comingn out of the battery just after the switch is closed. (b) Find the charge on the capacitors in the steady state condition.

Consider the circuits shown. The resistance connected between the junction A and B is 60Omega including the resistance of the galvanometer. The switches have no resistance when shorted and infinite resistance when opened. All the switches are initially open and they are closed as given in column I. Match the condition in column I with the direction of current through galvanometer and the value of the current through the battery in column II.

An uncharged capacitor is connected to an ideal battery through a resistance R and a switch S. Initially the switch is open . At an instant, the switch is closed . Taking this instant as t=0, which of the following graphs represent correct variation of the quantity taken along y -axis with time ?