Current can flow through a normally open push button switch as long as:
A. you are pressing the button
B. you are not pressing the button
C. its contact remain open
D. its contact remain open
E. None of the above
Answer: Option B
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In an intrinsic semiconductor, the number of free electrons
A. Equals the number of holes
B. Is less than the number of holes
C. Is greater than the number of holes
D. Impossible to say
E. None of the above
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A. solar cell
B. thermocouple
C. chemical cell
D. generator
E. None of the above
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A. A diamagnetic material
B. A paramagnetic material
C. A feiTomagnetic material
D. All of the above
E. None of the above
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A. always increases as the applied frequency increases
B. is equal to the sum of the values of resistance, inductive reactance and capacitive reactance
C. always decreases as the applied frequency increases
D. is maximum at the resonant frequency
E. None of the above
Normally open push button means the button is not in contact with the wires. So the answer must be "you are pressing the button"