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Transformer/Inverse
| Question | Answer |
|---|---|
| If an exposure at 3 feet is 40 mGy, what will be the exposure be at 5 feet? | 14 mGy |
| A circuit has 10,000 volts applied, a 20 ohm, 45 ohm, and a 200 ohm resistor in parallel and the current measures .005 amps. What is the applied power? | 50 watts |
| A filament transformer requires 100 amps (AC) on the secondary side. What is the initial current if the transformer has 100 windings on the primary side and 20 windings on the secondary side? | 20 |
| When a 10 ohm, 20 ohm, and 30 ohm resistors are connected in parallel, the total resistance is | less than 10 ohms. |
| An initial exposure at 8 feet produces 26 mGy. A second exposure is taken producing 48 mGy, what is the new distance? | 6 feet |
| Determine if the transformer is a step-up or a step-down transformer. The transformer has 20 primary windings and 75 secondary windings. | Step up |
| A transformer has 300 windings on its primary side with 100 volts (AC) applied. The transformer has 50 windings on the secondary side. What is the voltage on the secondary side of the transformer? | 16 |
| If the exposure rate to a body standing at 7 ft from a radiation source is 140 mGy, what will be the dose to the body at a distance of 8 ft from the source? | 107 mGy |
| If a circuit contains 25 ohms of resistance, with 50 volts applied, the current will be | 2 amps |
| A high-tension transformer raises 110 volts (AC) to 100,000 volts (AC). If the initial current was 2 amps what would the secondary current be? | 0.0022 |
| What is a form of Ohm's Law? | R = V/I I = V/R V = IR |
| A transformer has 20 windings on its primary side and 75 windings on its secondary side. What would the current be on the secondary side if 100 amps (AC) were applied to the primary? | 26 |
| Determine if the transformer is a step-up or a step-down transformer. The transformer has 300 primary windings and 10 secondary windings. | Step down |
| If the exposure rate to a person standing 4 meters from a radiation source is 10 mGy, what will be the dose received at a distance of 6 meters from the source? | 4.44 mGy |
| A transformer has 10 volts (DC) applied to it. What would the current be on the secondary side if there were 50 windings on the primary side and 10 windings on the secondary side? | 0 |
Created by:
DeAndreMitchell
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