Electronic Principles
A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding?

0.20833333333333
50 A
20 A
None of these

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Electronic Principles
Which one of the following statements is true for the voltages in a series RC circuit?

The total voltage is equal to the sum of the voltages across the resistance and capacitance
The total voltage is greater than the sum of the voltages across the resistance and capacitance
The total voltage is less than the sum of the voltages across the resistance and capacitance
None of these
The voltage always has the same amplitude and phase for every part of the circuit

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Electronic Principles
Which one of the following statements applies to common, non-rechargeable flashlight batteries?

Common flashlight batteries are secondary wet-cell batteries
Common flashlight batteries are primary dry-cell batteries
Common flashlight batteries are secondary dry-cell batteries
Common flashlight batteries are primary wet-cell batteries
None of these

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Electronic Principles
Which one of the following statements is true for the voltage in a parallel RC circuit?

The total voltage leads the total current by less than 90 degree
The total voltage is less than the sum of the voltages across the resistance and capacitance
The voltage always has the same amplitude and phase for every part of the circuit
None of these
The total voltage is equal to the sum of the voltages across the resistance and capacitance

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