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Electronic Principles - Section 3 Multiple Questions and Answers.
| 26. | If a load resistance is 1 kW, a stiff voltage source has a resistance of | ||
| A. | At least 10 Ohm | ||
| B. | less than 10 Ohm | ||
| C. | More than 100 k Ohm | ||
| D. | Less than 100 k Ohm | ||
| 27. | A typical light switch in your home is a: | ||
| A. | knife switch | ||
| B. | toggle switch | ||
| C. | rotary switch | ||
| D. | momentary push button switch | ||
| 28. | Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage? | ||
| A. | 100 V | ||
| B. | 120 V | ||
| C. | 170 V | ||
| D. | 180 V | ||
| 29. | A device that converts thermal energy to electrical energy is called a: | ||
| A. | thermocouple | ||
| B. | solar cell | ||
| C. | chemical cell | ||
| D. | piezoelectric devices | ||
| 30. | How much power is being dissipated by a 1000 W resistance that has 25 V applied to it? | ||
| A. | 0.24 W | ||
| B. | 0.625 W | ||
| C. | 80 W | ||
| D. | 325 kW | ||
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