Computer Science - Electronic Principles

41. 

Which one of the following statements is true for current flowing in a parallel circuit?

A. The amount of current flow through each branch of a parallel circuit can be different, depending on the resistance of each branch part and the amount of voltage applied to it
B. The same current always flows through every part of a parallel circuit
C. The total current in a parallel circuit is equal to the total voltage multiplied by the total resistance
D. The total current in a parallel circuit is always less than the smallest amount of current
E. None of the above

Answer: Option A

Explanation:

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42. 

Holes are the minority carriers in which type of semiconductor?

A. Extrinsic
B. Intrinsic
C. n-type
D. p-type
E. None of the above

Answer: Option C

Explanation:

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43. 

Doubling the number of turns of wire in an inductor:

A. reduces the value of inductance by one-half
B. multiplies the value of inductance by two
C. multiplies the value of inductance by four
D. reduces the value of inductance by one-fourth
E. None of the above

Answer: Option C

Explanation:

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44. 

A farad is defined as the amount of capacitance necessary for:

A. dissipating 1 W of power
B. causing an ac phase shift greater than 90 degree
C. storing 1 V for 1 second
D. changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing
E. None of the above

Answer: Option D

Explanation:

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45. 

What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz?

A. less than 1 Ohm
B. 1590 Ohm
C. 312 Ohm
D. 690 Ohm
E. None of the above

Answer: Option B

Explanation:

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