Question

Explain the power BJT in detail with its characteristics. The reverse recovery current

of a power diode is 5 and the rate of fall of current is about 20 ⁄. Calculate (a) the stored

charge in the device and (b) the peak reverse current.​

Answer 1

Answer:

Direct Speech

In direct speech, we convey the message of the speaker in his own actual words without any change to another person.

Indirect Speech

In indirect speech, we convey the message of the speaker in our own words to another person.

Procedure of changing direct speech into indirect speech

Remove comma and inverted commas.

Put "that" between the reporting and reported speeches.(it is optional to put "that" between the reporting and reported speech)

Change the 1st letter of reported speech into small letter except for "I"

Change the pronoun of the direct speech according to the rules described in table 2

Change the tense of the direct speech appropriately according to rules described in table 3.

Change the words expressing nearness in time or places of the direct speech into its appropriate words expressing distance as per table 1

Rules for changing Direct into Indirect Speech

The past tense is often used when it is uncertain if the statement is true or when we are reporting objectively.

Indirect Speech Conversion Direct Speech Condition

Present Tenses in the Direct Speech are changed into Past Tense. If the reporting or principal verb is in the Past Tense.

Do Not Change Tense of reported Speech in Indirect Speech sentence If in direct speech you find say/says or will say.

Direct speech the words within the quotation marks talk of a universal truth or habitual action.

The reporting verb is in a present tense.

When there are two sentences combined with the help of a conjunction and both sentences have got different tenses. then change the tenses of both sentences according to the rule.

Words expressing nearness in time or places are generally changed into words expressing distance.

Change of place and time Direct Speech Word Indirect Speech Word

Here There

Today that day

this morning that morning

Yesterday the day before

Tomorrow the next day

next week the following week

next month the following month

Now Then

Ago Before

Thus So

Last Night the night before

This That

These Those

Hither Thither

Hence Thence

Come Go