Electronics - Resistance and Power
Exercise :: Resistance and Power - General Questions
| 36. |
How many connections does a rheostat have? |
Answer: Option B
Explanation:
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| 37. |
What are the parts of a rheostat? |
| A. |
wiper and resistor track | | B. |
solenoid and armature | | C. |
contact and wire wound | | D. |
center tape and wiper |
Answer: Option A
Explanation:
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| 38. |
The load resistance increases. How will the load current change? |
| A. |
vary | | B. |
remain constant | | C. |
increase | | D. |
decrease |
Answer: Option D
Explanation:
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| 39. |
What is the power dissipated by a 1.2 k resistor with 12 volts across it? |
Answer: Option C
Explanation:
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| 40. |
How many joules of energy will a 10 W lamp dissipate in one minute? |
| A. |
10 joules | | B. |
60 joules | | C. |
600 joules | | D. |
3600 joules |
Answer: Option C
Explanation:
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