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Electronics & Communication Engineering - Basic Electronics

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19.

Primary batteries, unlike secondary batteries, may be:

A.	charged once	B.	used once
C.	recharged over and over	D.	stored indefinitely

20.

In practical applications, battery voltage:

A.	is restored as soon as disconnect occurs	B.	is lowered as the load increases
C.	may be stored indefinitely	D.	will be reduced to zero as power is drawn

21.

The negative and positive charge symbols are assigned (in that order) to the:

A.	proton and electron	B.	electron and proton
C.	atom and nucleus	D.	electron and element

22.

A voltmeter is used:

A.	to measure current	B.	in series with the circuit
C.	in parallel with the circuit	D.	to measure coulombs

23.

If the current in a circuit equals 0 A, it is likely that the

A.	voltage is too high	B.	resistance is too low
C.	circuit has a short	D.	circuit is open

24.

Current equals:

A.	coulombs/times	B.	coulombs * time
C.	voltage/time	D.	voltage * time

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