If in a p-n junction, a square input signal of 10 V is applied as shown, then the output across R_L will be:
              

1.		2.
3.		4.

The electrical circuit used to get smooth output from a rectifier circuit is called:

1. oscillator.

2. filter.

3. amplifier.

4. logic gates.

Function of rectifier is 

(1) To convert ac into dc             

(2) To convert dc into ac

(3) Both (a) and (b)                   

(4) None of these

In the diagram, the input is across terminals A and C and the output is across terminals B and D, then the output is:

(1) Zero                                                              

(2) Same as input

(3) Full wave rectifier  

(4) Half wave rectifier

In the half-wave rectifier circuit shown. Which one of the following wave forms is true for ${\mathrm{V}}_{\mathrm{CD}}$, the output across C and D?

1. 

2. 

3. 

4.