Page 364 - GMAT 2017b_Neatb

Electronics Information Test 2

13. What is the role of a capacitor? 19. An AA battery produces a potential difference of 1.5
(A) It stores electricity. V. Four AA batteries are placed in series to power a
(B) It generates electricity. portable FM radio. What is the total voltage of the
(C) It burns electricity. radio?
(D) It controls electricity. (A) 0.75 V
(B) 1.5 V
14. When the switch is closed in this diagram, what will (C) 3.0 V
happen to the current? (D) 6.0 V
R
20. What is a transmitter used for?
(A) to speed up the current in a circuit
C (B) to aid in charging the capacitor
(C) as a resistor
(D) as a switch or an amplifier

(A) The current will remain steady. 21. Data stored on magnetic tape can be lost by which of
(B) The current will decrease over time as the the following?
capacitor charges. (A) exposure to light
(C) The current will increase over time as the (B) freezing temperatures
capacitor charges. (C) exposure to heat
(D) There will be no current when the switch is (D) low air pressure
closed.
22. Fill in the blank to make the following sentence true:
15. The piezoelectric effect occurs when “Current is the ______ an electrical charge passes a
(A) electricity is applied to a transformer, which specific point in a circuit”.
generates a surplus of energy. (A) direction in which
(B) certain types of crystals are vibrated or altered, (B) rate at which
causing them to generate a voltage. (C) mass with which
(C) static electricity builds up to a point where it (D) acceleration with which
discharges into the nearest object.
(D) none of the above occurs. 23. In a series circuit there are 7 resistors, each with a
resistance of 67W . What is the total resistance?
16. What is an RC circuit? (A) 37.5W
(A) a response-conductor circuit (B) 67W
(B) a resistance-current circuit (C) 234.5W
(C) a response-charge circuit
(D) a resistor-capacitor circuit (D) 469W
24. In a parallel circuit there are 7 resistors, each with a
17. Which of the following schematic symbols
resistance of 67W. What is the total resistance?
represents an LED?
(A) 37.5W
(A) (B) 67W
(C) 234.5W
(D) 469W
(B) 25. This schematic symbol represents what type of
switch?
(C)

(D)
18. Transistors may come in many shapes, but all have
three leads or legs, which are called the (A) multi-way switch
(A) base, activator and collector (B) multi-pole switch
(B) base, emitter, and activator (C) slide switch
(C) base, emitter, and activator (D) rocker switch
(D) base, collector, and tab.
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