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Electric Current through Gases Physics - Electric Current through Gases

Rajasthan Board (RBSE) - STD 12 Science - Physics (Rajasthan - English Medium). 3 questions in this chapter.

Question types

Electric Current through Gases question types

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

3
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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:
  • A
    25
  • ✓
    50
  • C
    100
  • D
    200

Answer: B.

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Q 2M.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:
  • ✓
    No appreciable current will pass through the diode.
  • B
    A large current will pass through the diode from the anode to the cathode.
  • C
    A large current will pass through the diode from the cathode to the anode.
  • D
    The diode will be damaged.

Answer: A.

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Q 3M.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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