Current electricity

4. If a parallel circuit is opened in the main line, the current

Increases in the branch of the lowest resistance
Increases in each branch
Is zero in all branches
Is zero in the highest resistive branch

Join Our Telegram Channel

main line, the
Subscribe on YouTube
current" class="read-more button" href="https://exam.pscnotes.com/mcq/if-a-parallel-circuit-is-opened-in-the-main-line-the-current/#more-59535">Detailed SolutionIf a parallel circuit is opened in the main line, the current

5. The substances which have a large number of free electrons and offer a low resistance are called

Insulators
Inductors
Semiconductors
Conductors

Join Our Telegram Channel
Subscribe on YouTube
are called" class="read-more button" href="https://exam.pscnotes.com/mcq/the-substances-which-have-a-large-number-of-free-electrons-and-offer-a-low-resistance-are-called/#more-59123">Detailed SolutionThe substances which have a large number of free electrons and offer a low resistance are called

6. Three resistances of 10 ohms, 15 ohms and 30 ohms are connected in parallel. The total resistance of the combination is

5 ohms
10 ohms
15 ohms
55 ohms

Join Our Telegram Channel

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 resistance of the combination is" class="read-more button" href="https://exam.pscnotes.com/mcq/three-resistances-of-10-ohms-15-ohms-and-30-ohms-are-connected-in-parallel-the-total-resistance-of-the-combination-is/#more-58658">Detailed SolutionThree resistances of 10 ohms, 15 ohms and 30 ohms are connected in parallel. The total resistance of the combination is

7. An electric filament bulb can be worked from

D.C. supply only
A.
supply only B. A.C. supply only C. Battery supply only
All above

Join Our Telegram Channel
Subscribe on YouTube
from" class="read-more button" href="https://exam.pscnotes.com/mcq/an-electric-filament-bulb-can-be-worked-from/#more-58186">Detailed SolutionAn electric filament bulb can be worked from

8. A resistance having rating 10 ohms, 10 W is likely to be a

Metallic resistor
Carbon resistor
Wire wound resistor
Variable resistor

Join Our Telegram Channel

viewBox="0 0 576 512"> Subscribe on YouTube is likely to be a" class="read-more button" href="https://exam.pscnotes.com/mcq/a-resistance-having-rating-10-ohms-10-w-is-likely-to-be-a/#more-58062">Detailed SolutionA resistance having rating 10 ohms, 10 W is likely to be a

9. For testing appliances, the wattage of test lamp should be

Very low
Low
High
Any value

Join Our Telegram Channel

288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 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 href="https://exam.pscnotes.com/mcq/for-testing-appliances-the-wattage-of-test-lamp-should-be/#more-57937">Detailed SolutionFor testing appliances, the wattage of test lamp should be

10. When one leg of parallel circuit is opened out the total current will

Reduce
Increase
Decrease
Become zero

Detailed SolutionWhen one

Join Our Telegram Channel
Subscribe on YouTube
leg of parallel circuit is opened out the total current will

Page 1Page 2Page 3Page 4Page 5
Test 1Test 2