‘Series aiding’ is a term sometimes used to describe voltage sources of the same polarity in series.

To determine the polarity of the voltage drop across a resistor, it is necessary to know

A

Value of current through the resistor

B

Direction of current through the resistor

C

Value of resistor

D

E.m.f. in the circuit

The polarity of the induced voltage can be determined by using the left-hand generator rule.

A

Yes

B

No

"Sometimes reports are misleading --- in this sentence "Sometimes is---

A

Noun

B

Pronoun

C

Adverb

D

Adjective

I am changing all the time, sometimes people like me sometimes they don't. Who am I?

A

Dream

B

Weather

C

Windq

D

Wave

Sometimes reports are misleading’ here ‘sometimes' is--

A

an adverb

B

a pronoun

C

a noun

D

an adjective

Rich countries can sometimes afford to take measures to offset cultural intrusion, Which of the following ored bes describe the meaning of the word ifn bold ?

A

counerbalance

B

barter

C

normalize

D

monitor

The term _____ is sometimes used to refer to a data file in which all the records have the same record format, that is, the same field names, field lengths, and data types.

A

Database

B

Table

C

Flat file

D

Data structure

E

None of the above

What will happen if the transformers working in parallel are not connected with regard to polarity?

A

The power factor of the two trans-formers will be different from the power factor of common load

B

Incorrect polarity will result in dead short circuit

C

The transformers will not share load in proportion to their kVA ratings

D

Cannot be determined

If the instantaneous RF potentials on the two sides of a magnetron cavity are of opposite polarity, the operation is in the

A

$$\pi $$ mode

B

$$\frac{\pi }{2}$$ mode

C

$$2\pi $$ mode

D

$$\frac{\pi }{4}$$ mode

When measuring AC (Alternating Current) with a multimeter, it is important to maintain the proper polarity.

A

True

B

FALSE

C

MEM /C

D

SYS:

E

None of the above

‘Series aiding’ is a term sometimes used to describe voltage sources of the same polarity in series.

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