What does the points P and Q in Fig. EP 14.23 (b) represent?

What does the point P in Fig. EP 14.23 (a) represent for a diode?

Name the type of a diode whose characterstics are shown in Fig. EP 14.23 (a) and Fig. EP 14.23(b).

A 220 V A.C. supply is connected between points A and B (Fig. EP. 14.4). What will be the potential difference v across the capacitor?

Answer the following : What does the denominator of a fraction represent?

The output of the given circuit in Fig. EP. 14.6.

In a meter bridge the point D is a neutral point (Fig. EP 3.11)

Write the truth table for the circuit shown in Fig. EP 14.29. Name the gate that the circuit resembles.

AB is a line-segment. P and Q are points on opposite sides of AB such that each of them is equidistant from the points A and B (see Fig. 7.37). Show that the line PQ is the perpendicular bisector of AB.

Figure 14.26 (a) shows a spring of force constant k clamped rigidly at one end and a mass m attached to its free end. A force F applied at the free end stretches the spring. Figure 14.26 (b) shows the same spring with both endsfree and attached to a mass m at either end. Each end of the spring in Fig. 14.26(b) is stretched by the same force F If the mass in Fig. (a) and the two masses in Fig. (b) are released, what is the period of oscillation in each case ?