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Electric Current through Gases Physics - Electric Current through Gases

Rajasthan Board (RBSE) - STD 12 Science - Physics (Rajasthan - English Medium). 6 questions in this chapter.

Question types

Electric Current through Gases question types

6 questions across 1 question group — pick any mix to generate a Physics paper with step-by-step answer keys.

6
Questions
1
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5
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Sample Questions

Electric Current through Gases questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark
A diode, a resistor and a 50Hz AC source are connected in series. The number of current pulses per second through the resistor is:
  1. 25
  2. 50
  3. 100
  4. 200
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Q 3M.C.Q (1 Marks)1 Mark
The anode of a thermionic diode is connected to the negative terminal of a battery and the cathode to its positive terminal:
  1. No appreciable current will pass through the diode.
  2. A large current will pass through the diode from the anode to the cathode.
  3. A large current will pass through the diode from the cathode to the anode.
  4. The diode will be damaged.
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Q 4M.C.Q (1 Marks)1 Mark
A triode is operated in the linear region of its characteristics. If the plate voltage is slightly increased, the dynamic plate resistance will:
  • A
    Increase.
  • B
    Decrease.
  • ✓
    Remain almost the same.
  • D
    Become zero.

Answer: C.

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Q 5M.C.Q (1 Marks)1 Mark
The plate current in a diode is zero. It is possible that:
  1. The plate voltage is zero.
  2. The plate voltage is slightly negative.
  3. The plate voltage is slightly positive.
  4. The temperature of the filament is low.
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