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- Question
An electric fuse is based on
Options- A. the chemical effect of the current
- B. the magnetic effect of the current
- C. the heating effect of the current
- D. All of the above
- Correct Answer
- the heating effect of the current
ExplanationAn electric fuse is based on the heating effect of the current.
- 1. A wave with high amplitude have
Options- A. high pitch
- B. low energy
- C. high energy
- D. low pitch Discuss
- 2. Siphon will fail to work if
Options- A. The level of the liquid in the two vessels are at the same height
- B. The temperature of the liquids in the two vessels are the same
- C. The densities of the liquid in the two vessels are equal
- D. Both its limbs are of unequal length Discuss
- 3. Graphite is a good conductor of electricity.
Options- A. TRUE
- B. FALSE Discuss
- 4. The least penetrating power ray is
Options- A. Gamma rays
- B. Beta rays
- C. Alpha rays
- D. None of the above Discuss
- 5. One billionth of a second is called
Options- A. microsecond
- B. picoseconds
- C. millisecond
- D. nanosecond Discuss
- That is, 1/1,000,000,000 of a second, or 10^?9 seconds.
- 6. The flow of thermal energy is called
Options- A. Heat
- B. Current
- C. Voltage
- D. Potential Discuss
- 7. A permanent magnet can affect
Options- A. Magnets
- B. Electromagnets
- C. Both A & B
- D. None of the above Discuss
- 8. The solubility of a gas in a liquid is
Options- A. increased with increasing pressure
- B. decreased with increasing temperature
- C. Both A & B
- D. None of the above Discuss
- 9. In order to make an electromagnet you need a
Options- A. Dry cell batteries
- B. Thin coated copper wire
- C. Iron nail
- D. All of the above Discuss
- 10. Skids occur when the brakes are applied so hard that the front or rear wheels lose traction are called as
Options- A. Cornering
- B. BLowout
- C. Power
- D. Braking Discuss
Physics problems
Search Results
Correct Answer: high energy
Explanation:
The amplitude of a wave is a measure of the displacement of the wave from its rest position i.e, half the distance from its highest point to its lowest point.
Amplitude is proportional to the energy of a wave.
Correct Answer: The level of the liquid in the two vessels are at the same height
Correct Answer: TRUE
Explanation:
Graphite is a good conductor of electricity as it contains free electrons to move through the structure of the graphite.
Correct Answer: Alpha rays
Explanation:
The least penetrating power ray is Alpha rays.
Correct Answer: nanosecond
Explanation:
A nanosecond (ns) is an SI unit of time equal to one thousand-millionth of a second or one billionth of a second.
Correct Answer: Heat
Correct Answer: Both A & B
Correct Answer: Both A & B
Explanation:
The solubility of a gas in a liquid is directly and inversely proportional to pressure and temperature respectively.
Correct Answer: All of the above
Explanation:
To create a simple electromagnet, you'll need a source of electricity, a conductor, and metal. Wrap insulated copper wire tightly around an iron screw or nail before connecting the wire to a battery, and watch as your new electromagnet picks up small metal objects.
Correct Answer: Braking
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