Skip to content

MCQ and Quiz for Exams

  • Home
  • Telangana and Karnataka
  • Bihar
  • Haryana
  • Assam
  • Jammu and kashmir
  • Login

Current electricity

11. The condition for the validity under Ohm’s law is that

Resistance must be uniform
Current should be proportional to the size of the resistance
Resistance must be wire wound type
Temperature at positive end should be more than the temperature at negative end
Answer is Right!
Answer is Wrong!

Detailed SolutionThe condition for the validity under Ohm’s law is that

Join Our Telegram Channel

Subscribe on YouTube

12. When electric current passes through a bucket full of water, lot of bubbling is observed. This suggests that the type of supply is

A.C.
D.
B.
None of the above
Answer is Right!
Answer is Wrong!

Detailed SolutionWhen electric current passes through a bucket full of water, lot of bubbling is observed. This suggests that the type of supply is

Join Our Telegram Channel

Subscribe on YouTube

13. Resistance of carbon filament lamp as the applied voltage increases.

Increases
Decreases
Remains same
None of the above
Answer is Right!
Answer is Wrong!

Detailed SolutionResistance of carbon filament lamp as the applied voltage increases.

Subscribe on YouTube

Join Our Telegram Channel

14. Voltage dependent resistors are usually made from

Charcoal
Silicon carbide
Nichrome
Graphite
Answer is Right!
Answer is Wrong!

Detailed SolutionVoltage dependent resistors are usually made from

Join Our Telegram Channel

Subscribe on YouTube

15. Which is the best conductor of electricity?

Iron
Silver
Copper
Carbon
Answer is Right!
Answer is Wrong!

Detailed SolutionWhich is the best conductor of electricity?

Join Our Telegram Channel

Subscribe on YouTube

16. The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms, what is the resistance of the other?

18 ohms
36 ohms
48 ohms
64 ohms
Answer is Right!
Answer is Wrong!

Detailed SolutionThe resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms, what is the resistance of the other?

Subscribe on YouTube

Join Our Telegram Channel

17. Conductance: mho ::

Resistance : ohm
Capacitance : Henry
Inductance : farad
lumen : steradian
Answer is Right!
Answer is Wrong!

Detailed SolutionConductance: mho ::

Subscribe on YouTube

Join Our Telegram Channel

18. When a voltage of one volt is applied, a circuit allows one micro ampere current to flow through it. The conductance of the circuit is

1 n-mho
106 mho
1 milli-mho
None of the above
Answer is Right!
Answer is Wrong!

Detailed SolutionWhen a voltage of one volt is applied, a circuit allows one micro ampere current to flow through it. The conductance of the circuit is

Subscribe on YouTube

Join Our Telegram Channel

19. Which of the following material has nearly zero temperature coefficient of resistance?

Manganin
Porcelain
Carbon
Copper
Answer is Right!
Answer is Wrong!

Detailed SolutionWhich of the following material has nearly zero temperature coefficient of resistance?

Subscribe on YouTube

Join Our Telegram Channel

20. The hot resistance of the bulb’s filament is higher than its cold resistance because the temperature coefficient of the filament is

Zero
Negative
Positive
About 2 ohms per degree
Answer is Right!
Answer is Wrong!

Detailed SolutionThe hot resistance of the bulb’s filament is higher than its cold resistance because the temperature coefficient of the filament is

Subscribe on YouTube

Join Our Telegram Channel
Page 1Page 2Page 3Page 4Page 5

Test 1Test 2
© PSC Notes- Serving since 2015
Scroll back to top
  • Home
  • Telangana and Karnataka
  • Bihar
  • Haryana
  • Assam
  • Jammu and kashmir
  • Login
Go to mobile version