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Mechanical Reasoning Test – Electricity 1

Tests zum mechanischen Denken
Electricity
Mechanical Reasoning Test – Electricity 1

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Question 1 of 14
1. Question
The switch in the circuit is initially open, if R1 is equal to R2 then how does the current through R1 change after the switch is closed?
A. It remains the same
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B. It doubles
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C. It is half of its initial value
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D. Not enough information
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Question 2 of 14
2. Question
R1 is 50 Ohms and R2 is 100 Ohms how does the current through R2 change after the switch is closed?
A. It decreases to zero
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B. It increases from 0 amps to 50mA
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C. It increases from 0 amps to 100mA
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D. It increases from 50mA to 100mA
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Question 3 of 14
3. Question
All three resistors have resistance R. What is the equivalent resistance of this resistor network?
A. 3R/4
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B. 3/R
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C. 3R
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D. R/3
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Question 4 of 14
4. Question
The resistors have the resistances indicated in the figures. What is the equivalent resistance of this resistor network?
A. R
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B. (4/3)R
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C. 4R
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D. R/4
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Question 5 of 14
5. Question
Which of these components is a resistor?
A
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B
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C
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D
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Question 6 of 14
6. Question
Which of these components primary function is to resist the flow of electric current?
A
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B
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C
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D
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Question 7 of 14
7. Question
All three capacitors have capacitance C. What is the equivalent capacitance of this capacitor network?
A. 3/C
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B. C/3
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C. (4/3)C
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D. 3C
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Question 8 of 14
8. Question
Both capacitors shown have capacitance C. What is the equivalent capacitance of this capacitor network?
A. C
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B. 2/C
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C. 2C
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D. C/2
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Question 9 of 14
9. Question
Which of these components is used to store energy?
A. IV only
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B. I only
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C. II, III, IV
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D. III only
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Question 10 of 14
10. Question
Electric current flows through a metal wire when:
A. Metal ions move from the more negative end to the more positive end.
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B. Ether moves from the more positive end to the more negative end.
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C. Electrons move from the more positive end to the more negative end.
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D. Electrons move from the more negative end to the more positive end.
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Question 11 of 14
11. Question
What happens immediately after the switch is closed?
A. Current begins to flow through the resistor.
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B. The capacitor begins to charge.
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C. Current stops flowing through the resistor.
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D. Nothing happens.
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Question 12 of 14
12. Question
Which is not true about the circuit a long time after the switch has been closed?
A. The capacitor is fully charged.
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B. There is a constant current flowing through the resistor.
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C. There is a constant current flowing through the capacitor.
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D. The voltage across the capacitor is 5V.
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Question 13 of 14
13. Question
What is the current through the circled resistor?
A. 1 amp
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B. 100mA
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C. 300mA
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D. 15mA
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Question 14 of 14
14. Question
How much current flows through the circled resistor?
A. 1amp
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B. 100mA
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C. 500mA
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D. 15mA
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