Current electricity

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

Detailed SolutionWhen electric current passes through a bucket full of water, lot

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24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube
of bubbling is observed. This suggests that the type of supply is

14. Voltage dependent resistors are usually made from

Charcoal
Silicon carbide
Nichrome
Graphite

Detailed

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48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube
SolutionVoltage dependent resistors are usually made from

15. Which is the best conductor of electricity?

Iron
Silver
Copper
Carbon

Detailed Solution

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class="screen-reader-text">Which is the best conductor of electricity?

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

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0 576 512"> Subscribe on YouTube of the other?" class="read-more button" href="https://exam.pscnotes.com/mcq/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/#more-56527">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?

17. Conductance: mho ::

Resistance : ohm
Capacitance : Henry
Inductance : farad
lumen : steradian

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title="Conductance: mho ::" class="read-more button" href="https://exam.pscnotes.com/mcq/conductance-mho/#more-56512">Detailed SolutionConductance: mho ::

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

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allows one micro ampere current to flow through it. The conductance of the circuit is" class="read-more button" href="https://exam.pscnotes.com/mcq/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/#more-56443">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

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

Manganin
Porcelain
Carbon
Copper

Detailed

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

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

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because the temperature coefficient of the filament is" class="read-more button" href="https://exam.pscnotes.com/mcq/the-hot-resistance-of-the-bulbs-filament-is-higher-than-its-cold-resistance-because-the-temperature-coefficient-of-the-filament-is/#more-56058">Detailed SolutionThe hot resistance of the bulb’s filament is higher than its cold resistance because the temperature coefficient of the filament is

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